Home / 4,899.80-6,761.45-2,882.90

Finding the Fourth Proportional to 4,899.80, 6,761.45 and 2,882.90

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Solution

The fourth proportional to 4,899.80, 6,761.45 and 2,882.90 is: 3,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.80 : 6,761.45 = 2,882.90 : x
  2. Step 2: Convert to fraction form
    4,899.80/6,761.45 = 2,882.90/x
  3. Step 3: Cross multiply
    4,899.80x = 6,761.45 × 2,882.90
  4. Step 4: Simplify right side
    4,899.80x = 19,492,584.21
  5. Step 5: Solve for x
    x = 19,492,584.21/4,899.80
  6. Step 6: Final answer
    x = 3,978.24

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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.