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Finding the Fourth Proportional to 3,432.76, 5,152.32 and 1,790.48

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Solution

The fourth proportional to 3,432.76, 5,152.32 and 1,790.48 is: 2,687.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.76 : 5,152.32 = 1,790.48 : x
  2. Step 2: Convert to fraction form
    3,432.76/5,152.32 = 1,790.48/x
  3. Step 3: Cross multiply
    3,432.76x = 5,152.32 × 1,790.48
  4. Step 4: Simplify right side
    3,432.76x = 9,225,125.91
  5. Step 5: Solve for x
    x = 9,225,125.91/3,432.76
  6. Step 6: Final answer
    x = 2,687.38

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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.