Home / 2,220.48-3,065.52-1,974.40

Finding the Fourth Proportional to 2,220.48, 3,065.52 and 1,974.40

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Solution

The fourth proportional to 2,220.48, 3,065.52 and 1,974.40 is: 2,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.48 : 3,065.52 = 1,974.40 : x
  2. Step 2: Convert to fraction form
    2,220.48/3,065.52 = 1,974.40/x
  3. Step 3: Cross multiply
    2,220.48x = 3,065.52 × 1,974.40
  4. Step 4: Simplify right side
    2,220.48x = 6,052,562.69
  5. Step 5: Solve for x
    x = 6,052,562.69/2,220.48
  6. Step 6: Final answer
    x = 2,725.79

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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.