Home / 3,119.76-4,306.71-2,692.71

Finding the Fourth Proportional to 3,119.76, 4,306.71 and 2,692.71

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Solution

The fourth proportional to 3,119.76, 4,306.71 and 2,692.71 is: 3,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.76 : 4,306.71 = 2,692.71 : x
  2. Step 2: Convert to fraction form
    3,119.76/4,306.71 = 2,692.71/x
  3. Step 3: Cross multiply
    3,119.76x = 4,306.71 × 2,692.71
  4. Step 4: Simplify right side
    3,119.76x = 11,596,721.08
  5. Step 5: Solve for x
    x = 11,596,721.08/3,119.76
  6. Step 6: Final answer
    x = 3,717.18

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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.