Home / 4,780.29-7,170.62-2,280.18

Finding the Fourth Proportional to 4,780.29, 7,170.62 and 2,280.18

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Solution

The fourth proportional to 4,780.29, 7,170.62 and 2,280.18 is: 3,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.29 : 7,170.62 = 2,280.18 : x
  2. Step 2: Convert to fraction form
    4,780.29/7,170.62 = 2,280.18/x
  3. Step 3: Cross multiply
    4,780.29x = 7,170.62 × 2,280.18
  4. Step 4: Simplify right side
    4,780.29x = 16,350,292.91
  5. Step 5: Solve for x
    x = 16,350,292.91/4,780.29
  6. Step 6: Final answer
    x = 3,420.36

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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.