Home / 5,348.70-7,381.36-2,990.82

Finding the Fourth Proportional to 5,348.70, 7,381.36 and 2,990.82

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Solution

The fourth proportional to 5,348.70, 7,381.36 and 2,990.82 is: 4,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.70 : 7,381.36 = 2,990.82 : x
  2. Step 2: Convert to fraction form
    5,348.70/7,381.36 = 2,990.82/x
  3. Step 3: Cross multiply
    5,348.70x = 7,381.36 × 2,990.82
  4. Step 4: Simplify right side
    5,348.70x = 22,076,319.12
  5. Step 5: Solve for x
    x = 22,076,319.12/5,348.70
  6. Step 6: Final answer
    x = 4,127.42

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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.