Home / 1,494.18-2,241.36-763.38

Finding the Fourth Proportional to 1,494.18, 2,241.36 and 763.38

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Solution

The fourth proportional to 1,494.18, 2,241.36 and 763.38 is: 1,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.18 : 2,241.36 = 763.38 : x
  2. Step 2: Convert to fraction form
    1,494.18/2,241.36 = 763.38/x
  3. Step 3: Cross multiply
    1,494.18x = 2,241.36 × 763.38
  4. Step 4: Simplify right side
    1,494.18x = 1,711,009.40
  5. Step 5: Solve for x
    x = 1,711,009.40/1,494.18
  6. Step 6: Final answer
    x = 1,145.12

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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.