Home / 1,302.40-1,951.68-1,015.36

Finding the Fourth Proportional to 1,302.40, 1,951.68 and 1,015.36

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Solution

The fourth proportional to 1,302.40, 1,951.68 and 1,015.36 is: 1,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.40 : 1,951.68 = 1,015.36 : x
  2. Step 2: Convert to fraction form
    1,302.40/1,951.68 = 1,015.36/x
  3. Step 3: Cross multiply
    1,302.40x = 1,951.68 × 1,015.36
  4. Step 4: Simplify right side
    1,302.40x = 1,981,657.80
  5. Step 5: Solve for x
    x = 1,981,657.80/1,302.40
  6. Step 6: Final answer
    x = 1,521.54

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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.