Home / 1,178.52-1,629.89-1,030.90

Finding the Fourth Proportional to 1,178.52, 1,629.89 and 1,030.90

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Solution

The fourth proportional to 1,178.52, 1,629.89 and 1,030.90 is: 1,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.52 : 1,629.89 = 1,030.90 : x
  2. Step 2: Convert to fraction form
    1,178.52/1,629.89 = 1,030.90/x
  3. Step 3: Cross multiply
    1,178.52x = 1,629.89 × 1,030.90
  4. Step 4: Simplify right side
    1,178.52x = 1,680,253.60
  5. Step 5: Solve for x
    x = 1,680,253.60/1,178.52
  6. Step 6: Final answer
    x = 1,425.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.