Home / 1,178.34-1,767.50-1,003.38

Finding the Fourth Proportional to 1,178.34, 1,767.50 and 1,003.38

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Solution

The fourth proportional to 1,178.34, 1,767.50 and 1,003.38 is: 1,505.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.34 : 1,767.50 = 1,003.38 : x
  2. Step 2: Convert to fraction form
    1,178.34/1,767.50 = 1,003.38/x
  3. Step 3: Cross multiply
    1,178.34x = 1,767.50 × 1,003.38
  4. Step 4: Simplify right side
    1,178.34x = 1,773,474.15
  5. Step 5: Solve for x
    x = 1,773,474.15/1,178.34
  6. Step 6: Final answer
    x = 1,505.06

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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.