Home / 1,298.28-1,934.94-1,296.27

Finding the Fourth Proportional to 1,298.28, 1,934.94 and 1,296.27

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Solution

The fourth proportional to 1,298.28, 1,934.94 and 1,296.27 is: 1,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.28 : 1,934.94 = 1,296.27 : x
  2. Step 2: Convert to fraction form
    1,298.28/1,934.94 = 1,296.27/x
  3. Step 3: Cross multiply
    1,298.28x = 1,934.94 × 1,296.27
  4. Step 4: Simplify right side
    1,298.28x = 2,508,204.67
  5. Step 5: Solve for x
    x = 2,508,204.67/1,298.28
  6. Step 6: Final answer
    x = 1,931.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.