Home / 7,187.57-10,780.65-2,257.08

Finding the Fourth Proportional to 7,187.57, 10,780.65 and 2,257.08

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Solution

The fourth proportional to 7,187.57, 10,780.65 and 2,257.08 is: 3,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.57 : 10,780.65 = 2,257.08 : x
  2. Step 2: Convert to fraction form
    7,187.57/10,780.65 = 2,257.08/x
  3. Step 3: Cross multiply
    7,187.57x = 10,780.65 × 2,257.08
  4. Step 4: Simplify right side
    7,187.57x = 24,332,754.09
  5. Step 5: Solve for x
    x = 24,332,754.09/7,187.57
  6. Step 6: Final answer
    x = 3,385.39

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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.