Home / 2,234.80-3,084.24-1,240.12

Finding the Fourth Proportional to 2,234.80, 3,084.24 and 1,240.12

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Solution

The fourth proportional to 2,234.80, 3,084.24 and 1,240.12 is: 1,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.80 : 3,084.24 = 1,240.12 : x
  2. Step 2: Convert to fraction form
    2,234.80/3,084.24 = 1,240.12/x
  3. Step 3: Cross multiply
    2,234.80x = 3,084.24 × 1,240.12
  4. Step 4: Simplify right side
    2,234.80x = 3,824,827.71
  5. Step 5: Solve for x
    x = 3,824,827.71/2,234.80
  6. Step 6: Final answer
    x = 1,711.49

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Half scale
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Double scale
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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.