Home / 2,953.78-4,428.03-2,171.86

Finding the Fourth Proportional to 2,953.78, 4,428.03 and 2,171.86

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Solution

The fourth proportional to 2,953.78, 4,428.03 and 2,171.86 is: 3,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.78 : 4,428.03 = 2,171.86 : x
  2. Step 2: Convert to fraction form
    2,953.78/4,428.03 = 2,171.86/x
  3. Step 3: Cross multiply
    2,953.78x = 4,428.03 × 2,171.86
  4. Step 4: Simplify right side
    2,953.78x = 9,617,061.24
  5. Step 5: Solve for x
    x = 9,617,061.24/2,953.78
  6. Step 6: Final answer
    x = 3,255.85

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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.