Home / 2,299.86-3,172.38-1,304.92

Finding the Fourth Proportional to 2,299.86, 3,172.38 and 1,304.92

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Solution

The fourth proportional to 2,299.86, 3,172.38 and 1,304.92 is: 1,799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.86 : 3,172.38 = 1,304.92 : x
  2. Step 2: Convert to fraction form
    2,299.86/3,172.38 = 1,304.92/x
  3. Step 3: Cross multiply
    2,299.86x = 3,172.38 × 1,304.92
  4. Step 4: Simplify right side
    2,299.86x = 4,139,702.11
  5. Step 5: Solve for x
    x = 4,139,702.11/2,299.86
  6. Step 6: Final answer
    x = 1,799.98

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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.