Home / 5,272.56-7,279.20-3,177.36

Finding the Fourth Proportional to 5,272.56, 7,279.20 and 3,177.36

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Solution

The fourth proportional to 5,272.56, 7,279.20 and 3,177.36 is: 4,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.56 : 7,279.20 = 3,177.36 : x
  2. Step 2: Convert to fraction form
    5,272.56/7,279.20 = 3,177.36/x
  3. Step 3: Cross multiply
    5,272.56x = 7,279.20 × 3,177.36
  4. Step 4: Simplify right side
    5,272.56x = 23,128,638.91
  5. Step 5: Solve for x
    x = 23,128,638.91/5,272.56
  6. Step 6: Final answer
    x = 4,386.61

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1.5x scale

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.