Home / 2,867.40-4,299.21-1,385.82

Finding the Fourth Proportional to 2,867.40, 4,299.21 and 1,385.82

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Solution

The fourth proportional to 2,867.40, 4,299.21 and 1,385.82 is: 2,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.40 : 4,299.21 = 1,385.82 : x
  2. Step 2: Convert to fraction form
    2,867.40/4,299.21 = 1,385.82/x
  3. Step 3: Cross multiply
    2,867.40x = 4,299.21 × 1,385.82
  4. Step 4: Simplify right side
    2,867.40x = 5,957,931.20
  5. Step 5: Solve for x
    x = 5,957,931.20/2,867.40
  6. Step 6: Final answer
    x = 2,077.82

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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.