Home / 2,957.28-4,081.41-1,715.28

Finding the Fourth Proportional to 2,957.28, 4,081.41 and 1,715.28

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Solution

The fourth proportional to 2,957.28, 4,081.41 and 1,715.28 is: 2,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.28 : 4,081.41 = 1,715.28 : x
  2. Step 2: Convert to fraction form
    2,957.28/4,081.41 = 1,715.28/x
  3. Step 3: Cross multiply
    2,957.28x = 4,081.41 × 1,715.28
  4. Step 4: Simplify right side
    2,957.28x = 7,000,760.94
  5. Step 5: Solve for x
    x = 7,000,760.94/2,957.28
  6. Step 6: Final answer
    x = 2,367.30

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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.