Home / 2,927.94-4,387.86-2,102.55

Finding the Fourth Proportional to 2,927.94, 4,387.86 and 2,102.55

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Solution

The fourth proportional to 2,927.94, 4,387.86 and 2,102.55 is: 3,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.94 : 4,387.86 = 2,102.55 : x
  2. Step 2: Convert to fraction form
    2,927.94/4,387.86 = 2,102.55/x
  3. Step 3: Cross multiply
    2,927.94x = 4,387.86 × 2,102.55
  4. Step 4: Simplify right side
    2,927.94x = 9,225,695.04
  5. Step 5: Solve for x
    x = 9,225,695.04/2,927.94
  6. Step 6: Final answer
    x = 3,150.92

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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.