Home / 5,887.13-8,120.15-3,997.65

Finding the Fourth Proportional to 5,887.13, 8,120.15 and 3,997.65

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Solution

The fourth proportional to 5,887.13, 8,120.15 and 3,997.65 is: 5,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.13 : 8,120.15 = 3,997.65 : x
  2. Step 2: Convert to fraction form
    5,887.13/8,120.15 = 3,997.65/x
  3. Step 3: Cross multiply
    5,887.13x = 8,120.15 × 3,997.65
  4. Step 4: Simplify right side
    5,887.13x = 32,461,543.10
  5. Step 5: Solve for x
    x = 32,461,543.10/5,887.13
  6. Step 6: Final answer
    x = 5,513.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.