Home / 5,348.85-7,380.36-2,990.54

Finding the Fourth Proportional to 5,348.85, 7,380.36 and 2,990.54

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Solution

The fourth proportional to 5,348.85, 7,380.36 and 2,990.54 is: 4,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.85 : 7,380.36 = 2,990.54 : x
  2. Step 2: Convert to fraction form
    5,348.85/7,380.36 = 2,990.54/x
  3. Step 3: Cross multiply
    5,348.85x = 7,380.36 × 2,990.54
  4. Step 4: Simplify right side
    5,348.85x = 22,071,224.89
  5. Step 5: Solve for x
    x = 22,071,224.89/5,348.85
  6. Step 6: Final answer
    x = 4,126.35

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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.