Home / 2,989.27-4,125.33-1,663.11

Finding the Fourth Proportional to 2,989.27, 4,125.33 and 1,663.11

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Solution

The fourth proportional to 2,989.27, 4,125.33 and 1,663.11 is: 2,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.27 : 4,125.33 = 1,663.11 : x
  2. Step 2: Convert to fraction form
    2,989.27/4,125.33 = 1,663.11/x
  3. Step 3: Cross multiply
    2,989.27x = 4,125.33 × 1,663.11
  4. Step 4: Simplify right side
    2,989.27x = 6,860,877.58
  5. Step 5: Solve for x
    x = 6,860,877.58/2,989.27
  6. Step 6: Final answer
    x = 2,295.17

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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.