Home / 5,389.60-8,084.74-1,691.97

Finding the Fourth Proportional to 5,389.60, 8,084.74 and 1,691.97

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Solution

The fourth proportional to 5,389.60, 8,084.74 and 1,691.97 is: 2,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.60 : 8,084.74 = 1,691.97 : x
  2. Step 2: Convert to fraction form
    5,389.60/8,084.74 = 1,691.97/x
  3. Step 3: Cross multiply
    5,389.60x = 8,084.74 × 1,691.97
  4. Step 4: Simplify right side
    5,389.60x = 13,679,137.54
  5. Step 5: Solve for x
    x = 13,679,137.54/5,389.60
  6. Step 6: Final answer
    x = 2,538.06

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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.