Home / 2,912.28-4,018.91-1,586.00

Finding the Fourth Proportional to 2,912.28, 4,018.91 and 1,586.00

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Solution

The fourth proportional to 2,912.28, 4,018.91 and 1,586.00 is: 2,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.28 : 4,018.91 = 1,586.00 : x
  2. Step 2: Convert to fraction form
    2,912.28/4,018.91 = 1,586.00/x
  3. Step 3: Cross multiply
    2,912.28x = 4,018.91 × 1,586.00
  4. Step 4: Simplify right side
    2,912.28x = 6,373,963.24
  5. Step 5: Solve for x
    x = 6,373,963.24/2,912.28
  6. Step 6: Final answer
    x = 2,188.65

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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.