Home / 1,304.40-1,951.74-1,289.82

Finding the Fourth Proportional to 1,304.40, 1,951.74 and 1,289.82

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Solution

The fourth proportional to 1,304.40, 1,951.74 and 1,289.82 is: 1,929.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.40 : 1,951.74 = 1,289.82 : x
  2. Step 2: Convert to fraction form
    1,304.40/1,951.74 = 1,289.82/x
  3. Step 3: Cross multiply
    1,304.40x = 1,951.74 × 1,289.82
  4. Step 4: Simplify right side
    1,304.40x = 2,517,393.29
  5. Step 5: Solve for x
    x = 2,517,393.29/1,304.40
  6. Step 6: Final answer
    x = 1,929.92

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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.