Home / 3,021.95-4,170.49-2,274.59

Finding the Fourth Proportional to 3,021.95, 4,170.49 and 2,274.59

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Solution

The fourth proportional to 3,021.95, 4,170.49 and 2,274.59 is: 3,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.95 : 4,170.49 = 2,274.59 : x
  2. Step 2: Convert to fraction form
    3,021.95/4,170.49 = 2,274.59/x
  3. Step 3: Cross multiply
    3,021.95x = 4,170.49 × 2,274.59
  4. Step 4: Simplify right side
    3,021.95x = 9,486,159.59
  5. Step 5: Solve for x
    x = 9,486,159.59/3,021.95
  6. Step 6: Final answer
    x = 3,139.08

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Half scale
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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.