Home / 5,490.72-7,577.22-2,972.87

Finding the Fourth Proportional to 5,490.72, 7,577.22 and 2,972.87

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Solution

The fourth proportional to 5,490.72, 7,577.22 and 2,972.87 is: 4,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.72 : 7,577.22 = 2,972.87 : x
  2. Step 2: Convert to fraction form
    5,490.72/7,577.22 = 2,972.87/x
  3. Step 3: Cross multiply
    5,490.72x = 7,577.22 × 2,972.87
  4. Step 4: Simplify right side
    5,490.72x = 22,526,090.02
  5. Step 5: Solve for x
    x = 22,526,090.02/5,490.72
  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.