Home / 2,687.28-4,025.40-1,588.32

Finding the Fourth Proportional to 2,687.28, 4,025.40 and 1,588.32

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Solution

The fourth proportional to 2,687.28, 4,025.40 and 1,588.32 is: 2,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.28 : 4,025.40 = 1,588.32 : x
  2. Step 2: Convert to fraction form
    2,687.28/4,025.40 = 1,588.32/x
  3. Step 3: Cross multiply
    2,687.28x = 4,025.40 × 1,588.32
  4. Step 4: Simplify right side
    2,687.28x = 6,393,623.33
  5. Step 5: Solve for x
    x = 6,393,623.33/2,687.28
  6. Step 6: Final answer
    x = 2,379.22

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1.5x scale

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.