Home / 2,869.16-3,958.47-1,983.42

Finding the Fourth Proportional to 2,869.16, 3,958.47 and 1,983.42

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Solution

The fourth proportional to 2,869.16, 3,958.47 and 1,983.42 is: 2,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.16 : 3,958.47 = 1,983.42 : x
  2. Step 2: Convert to fraction form
    2,869.16/3,958.47 = 1,983.42/x
  3. Step 3: Cross multiply
    2,869.16x = 3,958.47 × 1,983.42
  4. Step 4: Simplify right side
    2,869.16x = 7,851,308.57
  5. Step 5: Solve for x
    x = 7,851,308.57/2,869.16
  6. Step 6: Final answer
    x = 2,736.45

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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.