Home / 5,348.32-7,380.80-2,990.41

Finding the Fourth Proportional to 5,348.32, 7,380.80 and 2,990.41

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Solution

The fourth proportional to 5,348.32, 7,380.80 and 2,990.41 is: 4,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.32 : 7,380.80 = 2,990.41 : x
  2. Step 2: Convert to fraction form
    5,348.32/7,380.80 = 2,990.41/x
  3. Step 3: Cross multiply
    5,348.32x = 7,380.80 × 2,990.41
  4. Step 4: Simplify right side
    5,348.32x = 22,071,603.18
  5. Step 5: Solve for x
    x = 22,071,603.18/5,348.32
  6. Step 6: Final answer
    x = 4,126.83

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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.