Home / 1,358.82-2,041.88-1,318.73

Finding the Fourth Proportional to 1,358.82, 2,041.88 and 1,318.73

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Solution

The fourth proportional to 1,358.82, 2,041.88 and 1,318.73 is: 1,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.82 : 2,041.88 = 1,318.73 : x
  2. Step 2: Convert to fraction form
    1,358.82/2,041.88 = 1,318.73/x
  3. Step 3: Cross multiply
    1,358.82x = 2,041.88 × 1,318.73
  4. Step 4: Simplify right side
    1,358.82x = 2,692,671.61
  5. Step 5: Solve for x
    x = 2,692,671.61/1,358.82
  6. Step 6: Final answer
    x = 1,981.62

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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.