Home / 2,144.11-2,959.36-1,396.76

Finding the Fourth Proportional to 2,144.11, 2,959.36 and 1,396.76

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Solution

The fourth proportional to 2,144.11, 2,959.36 and 1,396.76 is: 1,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.11 : 2,959.36 = 1,396.76 : x
  2. Step 2: Convert to fraction form
    2,144.11/2,959.36 = 1,396.76/x
  3. Step 3: Cross multiply
    2,144.11x = 2,959.36 × 1,396.76
  4. Step 4: Simplify right side
    2,144.11x = 4,133,515.67
  5. Step 5: Solve for x
    x = 4,133,515.67/2,144.11
  6. Step 6: Final answer
    x = 1,927.85

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Half scale
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Double scale
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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.