Home / 5,124.32-7,680.72-2,529.08

Finding the Fourth Proportional to 5,124.32, 7,680.72 and 2,529.08

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Solution

The fourth proportional to 5,124.32, 7,680.72 and 2,529.08 is: 3,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.32 : 7,680.72 = 2,529.08 : x
  2. Step 2: Convert to fraction form
    5,124.32/7,680.72 = 2,529.08/x
  3. Step 3: Cross multiply
    5,124.32x = 7,680.72 × 2,529.08
  4. Step 4: Simplify right side
    5,124.32x = 19,425,155.34
  5. Step 5: Solve for x
    x = 19,425,155.34/5,124.32
  6. Step 6: Final answer
    x = 3,790.78

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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.