Home / 3,181.28-4,387.60-2,434.08

Finding the Fourth Proportional to 3,181.28, 4,387.60 and 2,434.08

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Solution

The fourth proportional to 3,181.28, 4,387.60 and 2,434.08 is: 3,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.28 : 4,387.60 = 2,434.08 : x
  2. Step 2: Convert to fraction form
    3,181.28/4,387.60 = 2,434.08/x
  3. Step 3: Cross multiply
    3,181.28x = 4,387.60 × 2,434.08
  4. Step 4: Simplify right side
    3,181.28x = 10,679,769.41
  5. Step 5: Solve for x
    x = 10,679,769.41/3,181.28
  6. Step 6: Final answer
    x = 3,357.07

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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.