Home / 3,440.20-5,160.30-975.10

Finding the Fourth Proportional to 3,440.20, 5,160.30 and 975.10

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Solution

The fourth proportional to 3,440.20, 5,160.30 and 975.10 is: 1,462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.20 : 5,160.30 = 975.10 : x
  2. Step 2: Convert to fraction form
    3,440.20/5,160.30 = 975.10/x
  3. Step 3: Cross multiply
    3,440.20x = 5,160.30 × 975.10
  4. Step 4: Simplify right side
    3,440.20x = 5,031,808.53
  5. Step 5: Solve for x
    x = 5,031,808.53/3,440.20
  6. Step 6: Final answer
    x = 1,462.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,441.20, 5,161.80 and 976.10
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.