Home / 2,912.00-4,018.56-1,585.71

Finding the Fourth Proportional to 2,912.00, 4,018.56 and 1,585.71

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Solution

The fourth proportional to 2,912.00, 4,018.56 and 1,585.71 is: 2,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.00 : 4,018.56 = 1,585.71 : x
  2. Step 2: Convert to fraction form
    2,912.00/4,018.56 = 1,585.71/x
  3. Step 3: Cross multiply
    2,912.00x = 4,018.56 × 1,585.71
  4. Step 4: Simplify right side
    2,912.00x = 6,372,261.65
  5. Step 5: Solve for x
    x = 6,372,261.65/2,912.00
  6. Step 6: Final answer
    x = 2,188.27

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1.5x scale

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.