Home / 1,943.58-2,915.31-482.71

Finding the Fourth Proportional to 1,943.58, 2,915.31 and 482.71

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Solution

The fourth proportional to 1,943.58, 2,915.31 and 482.71 is: 724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.58 : 2,915.31 = 482.71 : x
  2. Step 2: Convert to fraction form
    1,943.58/2,915.31 = 482.71/x
  3. Step 3: Cross multiply
    1,943.58x = 2,915.31 × 482.71
  4. Step 4: Simplify right side
    1,943.58x = 1,407,249.29
  5. Step 5: Solve for x
    x = 1,407,249.29/1,943.58
  6. Step 6: Final answer
    x = 724.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.