Home / 2,869.87-3,959.93-1,691.17

Finding the Fourth Proportional to 2,869.87, 3,959.93 and 1,691.17

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Solution

The fourth proportional to 2,869.87, 3,959.93 and 1,691.17 is: 2,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.87 : 3,959.93 = 1,691.17 : x
  2. Step 2: Convert to fraction form
    2,869.87/3,959.93 = 1,691.17/x
  3. Step 3: Cross multiply
    2,869.87x = 3,959.93 × 1,691.17
  4. Step 4: Simplify right side
    2,869.87x = 6,696,914.82
  5. Step 5: Solve for x
    x = 6,696,914.82/2,869.87
  6. Step 6: Final answer
    x = 2,333.53

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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.