Home / 5,370.87-8,020.13-4,385.61

Finding the Fourth Proportional to 5,370.87, 8,020.13 and 4,385.61

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Solution

The fourth proportional to 5,370.87, 8,020.13 and 4,385.61 is: 6,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.87 : 8,020.13 = 4,385.61 : x
  2. Step 2: Convert to fraction form
    5,370.87/8,020.13 = 4,385.61/x
  3. Step 3: Cross multiply
    5,370.87x = 8,020.13 × 4,385.61
  4. Step 4: Simplify right side
    5,370.87x = 35,173,131.24
  5. Step 5: Solve for x
    x = 35,173,131.24/5,370.87
  6. Step 6: Final answer
    x = 6,548.88

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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.