Home / 2,989.26-4,478.27-1,753

Finding the Fourth Proportional to 2,989.26, 4,478.27 and 1,753

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Solution

The fourth proportional to 2,989.26, 4,478.27 and 1,753 is: 2,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.26 : 4,478.27 = 1,753 : x
  2. Step 2: Convert to fraction form
    2,989.26/4,478.27 = 1,753/x
  3. Step 3: Cross multiply
    2,989.26x = 4,478.27 × 1,753
  4. Step 4: Simplify right side
    2,989.26x = 7,850,398.55
  5. Step 5: Solve for x
    x = 7,850,398.55/2,989.26
  6. Step 6: Final answer
    x = 2,626.20

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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.