Home / 3,426.90-4,728.74-1,934.88

Finding the Fourth Proportional to 3,426.90, 4,728.74 and 1,934.88

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Solution

The fourth proportional to 3,426.90, 4,728.74 and 1,934.88 is: 2,669.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.90 : 4,728.74 = 1,934.88 : x
  2. Step 2: Convert to fraction form
    3,426.90/4,728.74 = 1,934.88/x
  3. Step 3: Cross multiply
    3,426.90x = 4,728.74 × 1,934.88
  4. Step 4: Simplify right side
    3,426.90x = 9,149,534.78
  5. Step 5: Solve for x
    x = 9,149,534.78/3,426.90
  6. Step 6: Final answer
    x = 2,669.92

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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.