Home / 3,425.78-4,727.58-1,853.88

Finding the Fourth Proportional to 3,425.78, 4,727.58 and 1,853.88

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Solution

The fourth proportional to 3,425.78, 4,727.58 and 1,853.88 is: 2,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.78 : 4,727.58 = 1,853.88 : x
  2. Step 2: Convert to fraction form
    3,425.78/4,727.58 = 1,853.88/x
  3. Step 3: Cross multiply
    3,425.78x = 4,727.58 × 1,853.88
  4. Step 4: Simplify right side
    3,425.78x = 8,764,366.01
  5. Step 5: Solve for x
    x = 8,764,366.01/3,425.78
  6. Step 6: Final answer
    x = 2,558.36

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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.