Home / 5,144.37-7,716.56-1,248.78

Finding the Fourth Proportional to 5,144.37, 7,716.56 and 1,248.78

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Solution

The fourth proportional to 5,144.37, 7,716.56 and 1,248.78 is: 1,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.37 : 7,716.56 = 1,248.78 : x
  2. Step 2: Convert to fraction form
    5,144.37/7,716.56 = 1,248.78/x
  3. Step 3: Cross multiply
    5,144.37x = 7,716.56 × 1,248.78
  4. Step 4: Simplify right side
    5,144.37x = 9,636,279.55
  5. Step 5: Solve for x
    x = 9,636,279.55/5,144.37
  6. Step 6: Final answer
    x = 1,873.17

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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.