Home / 2,204.81-3,042.98-1,320.90

Finding the Fourth Proportional to 2,204.81, 3,042.98 and 1,320.90

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Solution

The fourth proportional to 2,204.81, 3,042.98 and 1,320.90 is: 1,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,204.81 : 3,042.98 = 1,320.90 : x
  2. Step 2: Convert to fraction form
    2,204.81/3,042.98 = 1,320.90/x
  3. Step 3: Cross multiply
    2,204.81x = 3,042.98 × 1,320.90
  4. Step 4: Simplify right side
    2,204.81x = 4,019,472.28
  5. Step 5: Solve for x
    x = 4,019,472.28/2,204.81
  6. Step 6: Final answer
    x = 1,823.05

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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.