Home / 3,111.18-4,293.32-1,713.92

Finding the Fourth Proportional to 3,111.18, 4,293.32 and 1,713.92

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Solution

The fourth proportional to 3,111.18, 4,293.32 and 1,713.92 is: 2,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.18 : 4,293.32 = 1,713.92 : x
  2. Step 2: Convert to fraction form
    3,111.18/4,293.32 = 1,713.92/x
  3. Step 3: Cross multiply
    3,111.18x = 4,293.32 × 1,713.92
  4. Step 4: Simplify right side
    3,111.18x = 7,358,407.01
  5. Step 5: Solve for x
    x = 7,358,407.01/3,111.18
  6. Step 6: Final answer
    x = 2,365.15

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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.