Home / 3,065.52-4,221.09-2,645.13

Finding the Fourth Proportional to 3,065.52, 4,221.09 and 2,645.13

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Solution

The fourth proportional to 3,065.52, 4,221.09 and 2,645.13 is: 3,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.52 : 4,221.09 = 2,645.13 : x
  2. Step 2: Convert to fraction form
    3,065.52/4,221.09 = 2,645.13/x
  3. Step 3: Cross multiply
    3,065.52x = 4,221.09 × 2,645.13
  4. Step 4: Simplify right side
    3,065.52x = 11,165,331.79
  5. Step 5: Solve for x
    x = 11,165,331.79/3,065.52
  6. Step 6: Final answer
    x = 3,642.23

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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.