Home / 7,187.14-10,780.71-2,257.21

Finding the Fourth Proportional to 7,187.14, 10,780.71 and 2,257.21

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Solution

The fourth proportional to 7,187.14, 10,780.71 and 2,257.21 is: 3,385.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.14 : 10,780.71 = 2,257.21 : x
  2. Step 2: Convert to fraction form
    7,187.14/10,780.71 = 2,257.21/x
  3. Step 3: Cross multiply
    7,187.14x = 10,780.71 × 2,257.21
  4. Step 4: Simplify right side
    7,187.14x = 24,334,326.42
  5. Step 5: Solve for x
    x = 24,334,326.42/7,187.14
  6. Step 6: Final answer
    x = 3,385.82

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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.