Home / 5,416.38-8,088.41-5,139.61

Finding the Fourth Proportional to 5,416.38, 8,088.41 and 5,139.61

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Solution

The fourth proportional to 5,416.38, 8,088.41 and 5,139.61 is: 7,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.38 : 8,088.41 = 5,139.61 : x
  2. Step 2: Convert to fraction form
    5,416.38/8,088.41 = 5,139.61/x
  3. Step 3: Cross multiply
    5,416.38x = 8,088.41 × 5,139.61
  4. Step 4: Simplify right side
    5,416.38x = 41,571,265.55
  5. Step 5: Solve for x
    x = 41,571,265.55/5,416.38
  6. Step 6: Final answer
    x = 7,675.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.