Home / 5,490.64-7,577.08-2,972.77

Finding the Fourth Proportional to 5,490.64, 7,577.08 and 2,972.77

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Solution

The fourth proportional to 5,490.64, 7,577.08 and 2,972.77 is: 4,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.64 : 7,577.08 = 2,972.77 : x
  2. Step 2: Convert to fraction form
    5,490.64/7,577.08 = 2,972.77/x
  3. Step 3: Cross multiply
    5,490.64x = 7,577.08 × 2,972.77
  4. Step 4: Simplify right side
    5,490.64x = 22,524,916.11
  5. Step 5: Solve for x
    x = 22,524,916.11/5,490.64
  6. Step 6: Final answer
    x = 4,102.42

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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.