Home / 2,958.40-4,434.12-2,225.60

Finding the Fourth Proportional to 2,958.40, 4,434.12 and 2,225.60

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Solution

The fourth proportional to 2,958.40, 4,434.12 and 2,225.60 is: 3,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.40 : 4,434.12 = 2,225.60 : x
  2. Step 2: Convert to fraction form
    2,958.40/4,434.12 = 2,225.60/x
  3. Step 3: Cross multiply
    2,958.40x = 4,434.12 × 2,225.60
  4. Step 4: Simplify right side
    2,958.40x = 9,868,577.47
  5. Step 5: Solve for x
    x = 9,868,577.47/2,958.40
  6. Step 6: Final answer
    x = 3,335.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.