Home / 1,311.03-1,966.38-337.06

Finding the Fourth Proportional to 1,311.03, 1,966.38 and 337.06

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Solution

The fourth proportional to 1,311.03, 1,966.38 and 337.06 is: 505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311.03 : 1,966.38 = 337.06 : x
  2. Step 2: Convert to fraction form
    1,311.03/1,966.38 = 337.06/x
  3. Step 3: Cross multiply
    1,311.03x = 1,966.38 × 337.06
  4. Step 4: Simplify right side
    1,311.03x = 662,788.04
  5. Step 5: Solve for x
    x = 662,788.04/1,311.03
  6. Step 6: Final answer
    x = 505.55

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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.