Home / 1,838.18-2,536.92-1,139.66

Finding the Fourth Proportional to 1,838.18, 2,536.92 and 1,139.66

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Solution

The fourth proportional to 1,838.18, 2,536.92 and 1,139.66 is: 1,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.18 : 2,536.92 = 1,139.66 : x
  2. Step 2: Convert to fraction form
    1,838.18/2,536.92 = 1,139.66/x
  3. Step 3: Cross multiply
    1,838.18x = 2,536.92 × 1,139.66
  4. Step 4: Simplify right side
    1,838.18x = 2,891,226.25
  5. Step 5: Solve for x
    x = 2,891,226.25/1,838.18
  6. Step 6: Final answer
    x = 1,572.87

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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.