Home / 3,306.74-4,562.39-2,128.49

Finding the Fourth Proportional to 3,306.74, 4,562.39 and 2,128.49

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Solution

The fourth proportional to 3,306.74, 4,562.39 and 2,128.49 is: 2,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.74 : 4,562.39 = 2,128.49 : x
  2. Step 2: Convert to fraction form
    3,306.74/4,562.39 = 2,128.49/x
  3. Step 3: Cross multiply
    3,306.74x = 4,562.39 × 2,128.49
  4. Step 4: Simplify right side
    3,306.74x = 9,711,026.77
  5. Step 5: Solve for x
    x = 9,711,026.77/3,306.74
  6. Step 6: Final answer
    x = 2,936.74

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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.