Home / 3,127.24-4,313.46-2,081.08

Finding the Fourth Proportional to 3,127.24, 4,313.46 and 2,081.08

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Solution

The fourth proportional to 3,127.24, 4,313.46 and 2,081.08 is: 2,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.24 : 4,313.46 = 2,081.08 : x
  2. Step 2: Convert to fraction form
    3,127.24/4,313.46 = 2,081.08/x
  3. Step 3: Cross multiply
    3,127.24x = 4,313.46 × 2,081.08
  4. Step 4: Simplify right side
    3,127.24x = 8,976,655.34
  5. Step 5: Solve for x
    x = 8,976,655.34/3,127.24
  6. Step 6: Final answer
    x = 2,870.47

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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.