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Finding the Fourth Proportional to 6,750.72, 10,129.44 and 3,787.32

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Solution

The fourth proportional to 6,750.72, 10,129.44 and 3,787.32 is: 5,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.72 : 10,129.44 = 3,787.32 : x
  2. Step 2: Convert to fraction form
    6,750.72/10,129.44 = 3,787.32/x
  3. Step 3: Cross multiply
    6,750.72x = 10,129.44 × 3,787.32
  4. Step 4: Simplify right side
    6,750.72x = 38,363,430.70
  5. Step 5: Solve for x
    x = 38,363,430.70/6,750.72
  6. Step 6: Final answer
    x = 5,682.87

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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.