Home / 3,040.00-4,195.40-1,781.46

Finding the Fourth Proportional to 3,040.00, 4,195.40 and 1,781.46

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Solution

The fourth proportional to 3,040.00, 4,195.40 and 1,781.46 is: 2,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.00 : 4,195.40 = 1,781.46 : x
  2. Step 2: Convert to fraction form
    3,040.00/4,195.40 = 1,781.46/x
  3. Step 3: Cross multiply
    3,040.00x = 4,195.40 × 1,781.46
  4. Step 4: Simplify right side
    3,040.00x = 7,473,928.38
  5. Step 5: Solve for x
    x = 7,473,928.38/3,040.00
  6. Step 6: Final answer
    x = 2,458.53

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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.