Home / 2,839.18-4,254.88-2,145.28

Finding the Fourth Proportional to 2,839.18, 4,254.88 and 2,145.28

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Solution

The fourth proportional to 2,839.18, 4,254.88 and 2,145.28 is: 3,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.18 : 4,254.88 = 2,145.28 : x
  2. Step 2: Convert to fraction form
    2,839.18/4,254.88 = 2,145.28/x
  3. Step 3: Cross multiply
    2,839.18x = 4,254.88 × 2,145.28
  4. Step 4: Simplify right side
    2,839.18x = 9,127,908.97
  5. Step 5: Solve for x
    x = 9,127,908.97/2,839.18
  6. Step 6: Final answer
    x = 3,214.98

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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.