Home / 5,411.79-8,116.29-2,124.90

Finding the Fourth Proportional to 5,411.79, 8,116.29 and 2,124.90

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Solution

The fourth proportional to 5,411.79, 8,116.29 and 2,124.90 is: 3,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.79 : 8,116.29 = 2,124.90 : x
  2. Step 2: Convert to fraction form
    5,411.79/8,116.29 = 2,124.90/x
  3. Step 3: Cross multiply
    5,411.79x = 8,116.29 × 2,124.90
  4. Step 4: Simplify right side
    5,411.79x = 17,246,304.62
  5. Step 5: Solve for x
    x = 17,246,304.62/5,411.79
  6. Step 6: Final answer
    x = 3,186.80

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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.