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Finding the Fourth Proportional to 3,589.96, 5,384.93 and 1,124.79

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Solution

The fourth proportional to 3,589.96, 5,384.93 and 1,124.79 is: 1,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.96 : 5,384.93 = 1,124.79 : x
  2. Step 2: Convert to fraction form
    3,589.96/5,384.93 = 1,124.79/x
  3. Step 3: Cross multiply
    3,589.96x = 5,384.93 × 1,124.79
  4. Step 4: Simplify right side
    3,589.96x = 6,056,915.41
  5. Step 5: Solve for x
    x = 6,056,915.41/3,589.96
  6. Step 6: Final answer
    x = 1,687.18

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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.