Home / 5,348.52-7,381.32-2,990.88

Finding the Fourth Proportional to 5,348.52, 7,381.32 and 2,990.88

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Solution

The fourth proportional to 5,348.52, 7,381.32 and 2,990.88 is: 4,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.52 : 7,381.32 = 2,990.88 : x
  2. Step 2: Convert to fraction form
    5,348.52/7,381.32 = 2,990.88/x
  3. Step 3: Cross multiply
    5,348.52x = 7,381.32 × 2,990.88
  4. Step 4: Simplify right side
    5,348.52x = 22,076,642.36
  5. Step 5: Solve for x
    x = 22,076,642.36/5,348.52
  6. Step 6: Final answer
    x = 4,127.62

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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.