Home / 5,390.18-8,084.08-1,691.92

Finding the Fourth Proportional to 5,390.18, 8,084.08 and 1,691.92

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Solution

The fourth proportional to 5,390.18, 8,084.08 and 1,691.92 is: 2,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.18 : 8,084.08 = 1,691.92 : x
  2. Step 2: Convert to fraction form
    5,390.18/8,084.08 = 1,691.92/x
  3. Step 3: Cross multiply
    5,390.18x = 8,084.08 × 1,691.92
  4. Step 4: Simplify right side
    5,390.18x = 13,677,616.63
  5. Step 5: Solve for x
    x = 13,677,616.63/5,390.18
  6. Step 6: Final answer
    x = 2,537.51

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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.