Home / 5,152.92-7,729.38-2,557.68

Finding the Fourth Proportional to 5,152.92, 7,729.38 and 2,557.68

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Solution

The fourth proportional to 5,152.92, 7,729.38 and 2,557.68 is: 3,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.92 : 7,729.38 = 2,557.68 : x
  2. Step 2: Convert to fraction form
    5,152.92/7,729.38 = 2,557.68/x
  3. Step 3: Cross multiply
    5,152.92x = 7,729.38 × 2,557.68
  4. Step 4: Simplify right side
    5,152.92x = 19,769,280.64
  5. Step 5: Solve for x
    x = 19,769,280.64/5,152.92
  6. Step 6: Final answer
    x = 3,836.52

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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.