Home / 1,306.71-1,946.88-1,222.92

Finding the Fourth Proportional to 1,306.71, 1,946.88 and 1,222.92

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Solution

The fourth proportional to 1,306.71, 1,946.88 and 1,222.92 is: 1,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.71 : 1,946.88 = 1,222.92 : x
  2. Step 2: Convert to fraction form
    1,306.71/1,946.88 = 1,222.92/x
  3. Step 3: Cross multiply
    1,306.71x = 1,946.88 × 1,222.92
  4. Step 4: Simplify right side
    1,306.71x = 2,380,878.49
  5. Step 5: Solve for x
    x = 2,380,878.49/1,306.71
  6. Step 6: Final answer
    x = 1,822.04

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Double scale
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1.5x scale

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.