Home / 8,780.62-13,170.86-2,937.18

Finding the Fourth Proportional to 8,780.62, 13,170.86 and 2,937.18

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Solution

The fourth proportional to 8,780.62, 13,170.86 and 2,937.18 is: 4,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.62 : 13,170.86 = 2,937.18 : x
  2. Step 2: Convert to fraction form
    8,780.62/13,170.86 = 2,937.18/x
  3. Step 3: Cross multiply
    8,780.62x = 13,170.86 × 2,937.18
  4. Step 4: Simplify right side
    8,780.62x = 38,685,186.57
  5. Step 5: Solve for x
    x = 38,685,186.57/8,780.62
  6. Step 6: Final answer
    x = 4,405.75

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1.5x scale

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.