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Finding the Fourth Proportional to 2,432.88, 3,357.32 and 1,384.88

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Solution

The fourth proportional to 2,432.88, 3,357.32 and 1,384.88 is: 1,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.88 : 3,357.32 = 1,384.88 : x
  2. Step 2: Convert to fraction form
    2,432.88/3,357.32 = 1,384.88/x
  3. Step 3: Cross multiply
    2,432.88x = 3,357.32 × 1,384.88
  4. Step 4: Simplify right side
    2,432.88x = 4,649,461.61
  5. Step 5: Solve for x
    x = 4,649,461.61/2,432.88
  6. Step 6: Final answer
    x = 1,911.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.