Home / 7,144.02-9,857.15-4,311.85

Finding the Fourth Proportional to 7,144.02, 9,857.15 and 4,311.85

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Solution

The fourth proportional to 7,144.02, 9,857.15 and 4,311.85 is: 5,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.02 : 9,857.15 = 4,311.85 : x
  2. Step 2: Convert to fraction form
    7,144.02/9,857.15 = 4,311.85/x
  3. Step 3: Cross multiply
    7,144.02x = 9,857.15 × 4,311.85
  4. Step 4: Simplify right side
    7,144.02x = 42,502,552.23
  5. Step 5: Solve for x
    x = 42,502,552.23/7,144.02
  6. Step 6: Final answer
    x = 5,949.39

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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.