Home / 2,204.79-3,042.13-1,272.75

Finding the Fourth Proportional to 2,204.79, 3,042.13 and 1,272.75

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Solution

The fourth proportional to 2,204.79, 3,042.13 and 1,272.75 is: 1,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,204.79 : 3,042.13 = 1,272.75 : x
  2. Step 2: Convert to fraction form
    2,204.79/3,042.13 = 1,272.75/x
  3. Step 3: Cross multiply
    2,204.79x = 3,042.13 × 1,272.75
  4. Step 4: Simplify right side
    2,204.79x = 3,871,870.96
  5. Step 5: Solve for x
    x = 3,871,870.96/2,204.79
  6. Step 6: Final answer
    x = 1,756.12

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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.