Home / 2,869.70-3,959.57-1,876.44

Finding the Fourth Proportional to 2,869.70, 3,959.57 and 1,876.44

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Solution

The fourth proportional to 2,869.70, 3,959.57 and 1,876.44 is: 2,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.70 : 3,959.57 = 1,876.44 : x
  2. Step 2: Convert to fraction form
    2,869.70/3,959.57 = 1,876.44/x
  3. Step 3: Cross multiply
    2,869.70x = 3,959.57 × 1,876.44
  4. Step 4: Simplify right side
    2,869.70x = 7,429,900.22
  5. Step 5: Solve for x
    x = 7,429,900.22/2,869.70
  6. Step 6: Final answer
    x = 2,589.08

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1.5x scale

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.