Home / 5,452.31-8,178.47-1,556.72

Finding the Fourth Proportional to 5,452.31, 8,178.47 and 1,556.72

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Solution

The fourth proportional to 5,452.31, 8,178.47 and 1,556.72 is: 2,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.31 : 8,178.47 = 1,556.72 : x
  2. Step 2: Convert to fraction form
    5,452.31/8,178.47 = 1,556.72/x
  3. Step 3: Cross multiply
    5,452.31x = 8,178.47 × 1,556.72
  4. Step 4: Simplify right side
    5,452.31x = 12,731,575.65
  5. Step 5: Solve for x
    x = 12,731,575.65/5,452.31
  6. Step 6: Final answer
    x = 2,335.08

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Half scale
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Double scale
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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.