Home / 5,123.76-7,688.16-2,525.28

Finding the Fourth Proportional to 5,123.76, 7,688.16 and 2,525.28

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Solution

The fourth proportional to 5,123.76, 7,688.16 and 2,525.28 is: 3,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.76 : 7,688.16 = 2,525.28 : x
  2. Step 2: Convert to fraction form
    5,123.76/7,688.16 = 2,525.28/x
  3. Step 3: Cross multiply
    5,123.76x = 7,688.16 × 2,525.28
  4. Step 4: Simplify right side
    5,123.76x = 19,414,756.68
  5. Step 5: Solve for x
    x = 19,414,756.68/5,123.76
  6. Step 6: Final answer
    x = 3,789.16

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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.