Home / 3,040-4,195.20-1,642.75

Finding the Fourth Proportional to 3,040, 4,195.20 and 1,642.75

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Solution

The fourth proportional to 3,040, 4,195.20 and 1,642.75 is: 2,267.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040 : 4,195.20 = 1,642.75 : x
  2. Step 2: Convert to fraction form
    3,040/4,195.20 = 1,642.75/x
  3. Step 3: Cross multiply
    3,040x = 4,195.20 × 1,642.75
  4. Step 4: Simplify right side
    3,040x = 6,891,664.80
  5. Step 5: Solve for x
    x = 6,891,664.80/3,040
  6. Step 6: Final answer
    x = 2,267.00

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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.