Home / 5,348.42-7,380.70-2,990.56

Finding the Fourth Proportional to 5,348.42, 7,380.70 and 2,990.56

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Solution

The fourth proportional to 5,348.42, 7,380.70 and 2,990.56 is: 4,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.42 : 7,380.70 = 2,990.56 : x
  2. Step 2: Convert to fraction form
    5,348.42/7,380.70 = 2,990.56/x
  3. Step 3: Cross multiply
    5,348.42x = 7,380.70 × 2,990.56
  4. Step 4: Simplify right side
    5,348.42x = 22,072,426.19
  5. Step 5: Solve for x
    x = 22,072,426.19/5,348.42
  6. Step 6: Final answer
    x = 4,126.91

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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.