Home / 5,427.72-7,490.40-2,943.72

Finding the Fourth Proportional to 5,427.72, 7,490.40 and 2,943.72

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Solution

The fourth proportional to 5,427.72, 7,490.40 and 2,943.72 is: 4,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.72 : 7,490.40 = 2,943.72 : x
  2. Step 2: Convert to fraction form
    5,427.72/7,490.40 = 2,943.72/x
  3. Step 3: Cross multiply
    5,427.72x = 7,490.40 × 2,943.72
  4. Step 4: Simplify right side
    5,427.72x = 22,049,640.29
  5. Step 5: Solve for x
    x = 22,049,640.29/5,427.72
  6. Step 6: Final answer
    x = 4,062.41

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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.