Home / 5,390.71-8,083.18-3,170.32

Finding the Fourth Proportional to 5,390.71, 8,083.18 and 3,170.32

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Solution

The fourth proportional to 5,390.71, 8,083.18 and 3,170.32 is: 4,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.71 : 8,083.18 = 3,170.32 : x
  2. Step 2: Convert to fraction form
    5,390.71/8,083.18 = 3,170.32/x
  3. Step 3: Cross multiply
    5,390.71x = 8,083.18 × 3,170.32
  4. Step 4: Simplify right side
    5,390.71x = 25,626,267.22
  5. Step 5: Solve for x
    x = 25,626,267.22/5,390.71
  6. Step 6: Final answer
    x = 4,753.78

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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.