Home / 5,348.80-7,381.38-2,991.16

Finding the Fourth Proportional to 5,348.80, 7,381.38 and 2,991.16

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Solution

The fourth proportional to 5,348.80, 7,381.38 and 2,991.16 is: 4,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.80 : 7,381.38 = 2,991.16 : x
  2. Step 2: Convert to fraction form
    5,348.80/7,381.38 = 2,991.16/x
  3. Step 3: Cross multiply
    5,348.80x = 7,381.38 × 2,991.16
  4. Step 4: Simplify right side
    5,348.80x = 22,078,888.60
  5. Step 5: Solve for x
    x = 22,078,888.60/5,348.80
  6. Step 6: Final answer
    x = 4,127.82

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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.