Home / 5,451.71-8,177.56-1,556.21

Finding the Fourth Proportional to 5,451.71, 8,177.56 and 1,556.21

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Solution

The fourth proportional to 5,451.71, 8,177.56 and 1,556.21 is: 2,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.71 : 8,177.56 = 1,556.21 : x
  2. Step 2: Convert to fraction form
    5,451.71/8,177.56 = 1,556.21/x
  3. Step 3: Cross multiply
    5,451.71x = 8,177.56 × 1,556.21
  4. Step 4: Simplify right side
    5,451.71x = 12,726,017.20
  5. Step 5: Solve for x
    x = 12,726,017.20/5,451.71
  6. Step 6: Final answer
    x = 2,334.32

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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.