Home / 2,221.14-3,065.28-1,277.24

Finding the Fourth Proportional to 2,221.14, 3,065.28 and 1,277.24

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Solution

The fourth proportional to 2,221.14, 3,065.28 and 1,277.24 is: 1,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.14 : 3,065.28 = 1,277.24 : x
  2. Step 2: Convert to fraction form
    2,221.14/3,065.28 = 1,277.24/x
  3. Step 3: Cross multiply
    2,221.14x = 3,065.28 × 1,277.24
  4. Step 4: Simplify right side
    2,221.14x = 3,915,084.18
  5. Step 5: Solve for x
    x = 3,915,084.18/2,221.14
  6. Step 6: Final answer
    x = 1,762.65

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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.