Home / 5,490.76-7,577.26-2,972.88

Finding the Fourth Proportional to 5,490.76, 7,577.26 and 2,972.88

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Solution

The fourth proportional to 5,490.76, 7,577.26 and 2,972.88 is: 4,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.76 : 7,577.26 = 2,972.88 : x
  2. Step 2: Convert to fraction form
    5,490.76/7,577.26 = 2,972.88/x
  3. Step 3: Cross multiply
    5,490.76x = 7,577.26 × 2,972.88
  4. Step 4: Simplify right side
    5,490.76x = 22,526,254.25
  5. Step 5: Solve for x
    x = 22,526,254.25/5,490.76
  6. Step 6: Final answer
    x = 4,102.57

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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.