Home / 1,899.18-2,841.28-1,438.29

Finding the Fourth Proportional to 1,899.18, 2,841.28 and 1,438.29

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Solution

The fourth proportional to 1,899.18, 2,841.28 and 1,438.29 is: 2,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.18 : 2,841.28 = 1,438.29 : x
  2. Step 2: Convert to fraction form
    1,899.18/2,841.28 = 1,438.29/x
  3. Step 3: Cross multiply
    1,899.18x = 2,841.28 × 1,438.29
  4. Step 4: Simplify right side
    1,899.18x = 4,086,581.02
  5. Step 5: Solve for x
    x = 4,086,581.02/1,899.18
  6. Step 6: Final answer
    x = 2,151.76

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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.