Home / 5,402.79-8,108.33-2,116.71

Finding the Fourth Proportional to 5,402.79, 8,108.33 and 2,116.71

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Solution

The fourth proportional to 5,402.79, 8,108.33 and 2,116.71 is: 3,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.79 : 8,108.33 = 2,116.71 : x
  2. Step 2: Convert to fraction form
    5,402.79/8,108.33 = 2,116.71/x
  3. Step 3: Cross multiply
    5,402.79x = 8,108.33 × 2,116.71
  4. Step 4: Simplify right side
    5,402.79x = 17,162,972.61
  5. Step 5: Solve for x
    x = 17,162,972.61/5,402.79
  6. Step 6: Final answer
    x = 3,176.69

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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.