Home / 2,229.38-3,347.54-2,130.79

Finding the Fourth Proportional to 2,229.38, 3,347.54 and 2,130.79

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Solution

The fourth proportional to 2,229.38, 3,347.54 and 2,130.79 is: 3,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.38 : 3,347.54 = 2,130.79 : x
  2. Step 2: Convert to fraction form
    2,229.38/3,347.54 = 2,130.79/x
  3. Step 3: Cross multiply
    2,229.38x = 3,347.54 × 2,130.79
  4. Step 4: Simplify right side
    2,229.38x = 7,132,904.76
  5. Step 5: Solve for x
    x = 7,132,904.76/2,229.38
  6. Step 6: Final answer
    x = 3,199.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.