Home / 3,143.12-4,324.68-3,066.32

Finding the Fourth Proportional to 3,143.12, 4,324.68 and 3,066.32

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Solution

The fourth proportional to 3,143.12, 4,324.68 and 3,066.32 is: 4,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.12 : 4,324.68 = 3,066.32 : x
  2. Step 2: Convert to fraction form
    3,143.12/4,324.68 = 3,066.32/x
  3. Step 3: Cross multiply
    3,143.12x = 4,324.68 × 3,066.32
  4. Step 4: Simplify right side
    3,143.12x = 13,260,852.78
  5. Step 5: Solve for x
    x = 13,260,852.78/3,143.12
  6. Step 6: Final answer
    x = 4,219.01

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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.