Home / 5,149.40-7,103.46-3,970.04

Finding the Fourth Proportional to 5,149.40, 7,103.46 and 3,970.04

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Solution

The fourth proportional to 5,149.40, 7,103.46 and 3,970.04 is: 5,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.40 : 7,103.46 = 3,970.04 : x
  2. Step 2: Convert to fraction form
    5,149.40/7,103.46 = 3,970.04/x
  3. Step 3: Cross multiply
    5,149.40x = 7,103.46 × 3,970.04
  4. Step 4: Simplify right side
    5,149.40x = 28,201,020.34
  5. Step 5: Solve for x
    x = 28,201,020.34/5,149.40
  6. Step 6: Final answer
    x = 5,476.56

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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.