Home / 4,938.80-7,397.40-3,837.20

Finding the Fourth Proportional to 4,938.80, 7,397.40 and 3,837.20

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Solution

The fourth proportional to 4,938.80, 7,397.40 and 3,837.20 is: 5,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.80 : 7,397.40 = 3,837.20 : x
  2. Step 2: Convert to fraction form
    4,938.80/7,397.40 = 3,837.20/x
  3. Step 3: Cross multiply
    4,938.80x = 7,397.40 × 3,837.20
  4. Step 4: Simplify right side
    4,938.80x = 28,385,303.28
  5. Step 5: Solve for x
    x = 28,385,303.28/4,938.80
  6. Step 6: Final answer
    x = 5,747.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.