Home / 3,111.24-4,293.30-1,713.80

Finding the Fourth Proportional to 3,111.24, 4,293.30 and 1,713.80

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Solution

The fourth proportional to 3,111.24, 4,293.30 and 1,713.80 is: 2,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.24 : 4,293.30 = 1,713.80 : x
  2. Step 2: Convert to fraction form
    3,111.24/4,293.30 = 1,713.80/x
  3. Step 3: Cross multiply
    3,111.24x = 4,293.30 × 1,713.80
  4. Step 4: Simplify right side
    3,111.24x = 7,357,857.54
  5. Step 5: Solve for x
    x = 7,357,857.54/3,111.24
  6. Step 6: Final answer
    x = 2,364.93

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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.