Home / 5,638.02-7,777.34-3,279.90

Finding the Fourth Proportional to 5,638.02, 7,777.34 and 3,279.90

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Solution

The fourth proportional to 5,638.02, 7,777.34 and 3,279.90 is: 4,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.02 : 7,777.34 = 3,279.90 : x
  2. Step 2: Convert to fraction form
    5,638.02/7,777.34 = 3,279.90/x
  3. Step 3: Cross multiply
    5,638.02x = 7,777.34 × 3,279.90
  4. Step 4: Simplify right side
    5,638.02x = 25,508,897.47
  5. Step 5: Solve for x
    x = 25,508,897.47/5,638.02
  6. Step 6: Final answer
    x = 4,524.44

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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.