Home / 2,869.29-3,959.52-1,690.44

Finding the Fourth Proportional to 2,869.29, 3,959.52 and 1,690.44

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Solution

The fourth proportional to 2,869.29, 3,959.52 and 1,690.44 is: 2,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.29 : 3,959.52 = 1,690.44 : x
  2. Step 2: Convert to fraction form
    2,869.29/3,959.52 = 1,690.44/x
  3. Step 3: Cross multiply
    2,869.29x = 3,959.52 × 1,690.44
  4. Step 4: Simplify right side
    2,869.29x = 6,693,330.99
  5. Step 5: Solve for x
    x = 6,693,330.99/2,869.29
  6. Step 6: Final answer
    x = 2,332.75

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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.