Home / 4,272.74-5,892.68-2,780.10

Finding the Fourth Proportional to 4,272.74, 5,892.68 and 2,780.10

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Solution

The fourth proportional to 4,272.74, 5,892.68 and 2,780.10 is: 3,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.74 : 5,892.68 = 2,780.10 : x
  2. Step 2: Convert to fraction form
    4,272.74/5,892.68 = 2,780.10/x
  3. Step 3: Cross multiply
    4,272.74x = 5,892.68 × 2,780.10
  4. Step 4: Simplify right side
    4,272.74x = 16,382,239.67
  5. Step 5: Solve for x
    x = 16,382,239.67/4,272.74
  6. Step 6: Final answer
    x = 3,834.13

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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.