Home / 1,264.32-1,897.20-1,009.44

Finding the Fourth Proportional to 1,264.32, 1,897.20 and 1,009.44

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Solution

The fourth proportional to 1,264.32, 1,897.20 and 1,009.44 is: 1,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.32 : 1,897.20 = 1,009.44 : x
  2. Step 2: Convert to fraction form
    1,264.32/1,897.20 = 1,009.44/x
  3. Step 3: Cross multiply
    1,264.32x = 1,897.20 × 1,009.44
  4. Step 4: Simplify right side
    1,264.32x = 1,915,109.57
  5. Step 5: Solve for x
    x = 1,915,109.57/1,264.32
  6. Step 6: Final answer
    x = 1,514.73

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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.