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Finding the Fourth Proportional to 2,454.24, 3,678.44 and 993.20

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Solution

The fourth proportional to 2,454.24, 3,678.44 and 993.20 is: 1,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.24 : 3,678.44 = 993.20 : x
  2. Step 2: Convert to fraction form
    2,454.24/3,678.44 = 993.20/x
  3. Step 3: Cross multiply
    2,454.24x = 3,678.44 × 993.20
  4. Step 4: Simplify right side
    2,454.24x = 3,653,426.61
  5. Step 5: Solve for x
    x = 3,653,426.61/2,454.24
  6. Step 6: Final answer
    x = 1,488.62

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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.