Home / 3,132.72-4,322.97-1,807.29

Finding the Fourth Proportional to 3,132.72, 4,322.97 and 1,807.29

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Solution

The fourth proportional to 3,132.72, 4,322.97 and 1,807.29 is: 2,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.72 : 4,322.97 = 1,807.29 : x
  2. Step 2: Convert to fraction form
    3,132.72/4,322.97 = 1,807.29/x
  3. Step 3: Cross multiply
    3,132.72x = 4,322.97 × 1,807.29
  4. Step 4: Simplify right side
    3,132.72x = 7,812,860.45
  5. Step 5: Solve for x
    x = 7,812,860.45/3,132.72
  6. Step 6: Final answer
    x = 2,493.95

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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.