Home / 5,615.46-7,747.53-3,378.18

Finding the Fourth Proportional to 5,615.46, 7,747.53 and 3,378.18

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Solution

The fourth proportional to 5,615.46, 7,747.53 and 3,378.18 is: 4,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.46 : 7,747.53 = 3,378.18 : x
  2. Step 2: Convert to fraction form
    5,615.46/7,747.53 = 3,378.18/x
  3. Step 3: Cross multiply
    5,615.46x = 7,747.53 × 3,378.18
  4. Step 4: Simplify right side
    5,615.46x = 26,172,550.90
  5. Step 5: Solve for x
    x = 26,172,550.90/5,615.46
  6. Step 6: Final answer
    x = 4,660.80

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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.