Home / 1,279.32-1,917.98-586.44

Finding the Fourth Proportional to 1,279.32, 1,917.98 and 586.44

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Solution

The fourth proportional to 1,279.32, 1,917.98 and 586.44 is: 879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.32 : 1,917.98 = 586.44 : x
  2. Step 2: Convert to fraction form
    1,279.32/1,917.98 = 586.44/x
  3. Step 3: Cross multiply
    1,279.32x = 1,917.98 × 586.44
  4. Step 4: Simplify right side
    1,279.32x = 1,124,780.19
  5. Step 5: Solve for x
    x = 1,124,780.19/1,279.32
  6. Step 6: Final answer
    x = 879.20

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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.