Home / 3,943.29-5,442.12-2,946.81

Finding the Fourth Proportional to 3,943.29, 5,442.12 and 2,946.81

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Solution

The fourth proportional to 3,943.29, 5,442.12 and 2,946.81 is: 4,066.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.29 : 5,442.12 = 2,946.81 : x
  2. Step 2: Convert to fraction form
    3,943.29/5,442.12 = 2,946.81/x
  3. Step 3: Cross multiply
    3,943.29x = 5,442.12 × 2,946.81
  4. Step 4: Simplify right side
    3,943.29x = 16,036,893.64
  5. Step 5: Solve for x
    x = 16,036,893.64/3,943.29
  6. Step 6: Final answer
    x = 4,066.88

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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.