Home / 2,087.24-3,131.26-1,047.47

Finding the Fourth Proportional to 2,087.24, 3,131.26 and 1,047.47

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Solution

The fourth proportional to 2,087.24, 3,131.26 and 1,047.47 is: 1,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.24 : 3,131.26 = 1,047.47 : x
  2. Step 2: Convert to fraction form
    2,087.24/3,131.26 = 1,047.47/x
  3. Step 3: Cross multiply
    2,087.24x = 3,131.26 × 1,047.47
  4. Step 4: Simplify right side
    2,087.24x = 3,279,882.64
  5. Step 5: Solve for x
    x = 3,279,882.64/2,087.24
  6. Step 6: Final answer
    x = 1,571.40

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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.