Home / 3,087.90-4,630.41-896.13

Finding the Fourth Proportional to 3,087.90, 4,630.41 and 896.13

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Solution

The fourth proportional to 3,087.90, 4,630.41 and 896.13 is: 1,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.90 : 4,630.41 = 896.13 : x
  2. Step 2: Convert to fraction form
    3,087.90/4,630.41 = 896.13/x
  3. Step 3: Cross multiply
    3,087.90x = 4,630.41 × 896.13
  4. Step 4: Simplify right side
    3,087.90x = 4,149,449.31
  5. Step 5: Solve for x
    x = 4,149,449.31/3,087.90
  6. Step 6: Final answer
    x = 1,343.78

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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.