Home / 3,129.14-4,316.34-2,066.92

Finding the Fourth Proportional to 3,129.14, 4,316.34 and 2,066.92

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Solution

The fourth proportional to 3,129.14, 4,316.34 and 2,066.92 is: 2,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.14 : 4,316.34 = 2,066.92 : x
  2. Step 2: Convert to fraction form
    3,129.14/4,316.34 = 2,066.92/x
  3. Step 3: Cross multiply
    3,129.14x = 4,316.34 × 2,066.92
  4. Step 4: Simplify right side
    3,129.14x = 8,921,529.47
  5. Step 5: Solve for x
    x = 8,921,529.47/3,129.14
  6. Step 6: Final answer
    x = 2,851.11

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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.