Home / 5,481.54-8,221.11-1,585.10

Finding the Fourth Proportional to 5,481.54, 8,221.11 and 1,585.10

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Solution

The fourth proportional to 5,481.54, 8,221.11 and 1,585.10 is: 2,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.54 : 8,221.11 = 1,585.10 : x
  2. Step 2: Convert to fraction form
    5,481.54/8,221.11 = 1,585.10/x
  3. Step 3: Cross multiply
    5,481.54x = 8,221.11 × 1,585.10
  4. Step 4: Simplify right side
    5,481.54x = 13,031,281.46
  5. Step 5: Solve for x
    x = 13,031,281.46/5,481.54
  6. Step 6: Final answer
    x = 2,377.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 5,482.54, 8,222.61 and 1,586.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.