Home / 5,425.83-7,487.73-3,187.76

Finding the Fourth Proportional to 5,425.83, 7,487.73 and 3,187.76

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Solution

The fourth proportional to 5,425.83, 7,487.73 and 3,187.76 is: 4,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.83 : 7,487.73 = 3,187.76 : x
  2. Step 2: Convert to fraction form
    5,425.83/7,487.73 = 3,187.76/x
  3. Step 3: Cross multiply
    5,425.83x = 7,487.73 × 3,187.76
  4. Step 4: Simplify right side
    5,425.83x = 23,869,048.75
  5. Step 5: Solve for x
    x = 23,869,048.75/5,425.83
  6. Step 6: Final answer
    x = 4,399.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.