Home / 2,899.28-3,999.30-1,851.86

Finding the Fourth Proportional to 2,899.28, 3,999.30 and 1,851.86

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Solution

The fourth proportional to 2,899.28, 3,999.30 and 1,851.86 is: 2,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.28 : 3,999.30 = 1,851.86 : x
  2. Step 2: Convert to fraction form
    2,899.28/3,999.30 = 1,851.86/x
  3. Step 3: Cross multiply
    2,899.28x = 3,999.30 × 1,851.86
  4. Step 4: Simplify right side
    2,899.28x = 7,406,143.70
  5. Step 5: Solve for x
    x = 7,406,143.70/2,899.28
  6. Step 6: Final answer
    x = 2,554.48

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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.