Home / 2,051.11-2,831.05-1,167.20

Finding the Fourth Proportional to 2,051.11, 2,831.05 and 1,167.20

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Solution

The fourth proportional to 2,051.11, 2,831.05 and 1,167.20 is: 1,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.11 : 2,831.05 = 1,167.20 : x
  2. Step 2: Convert to fraction form
    2,051.11/2,831.05 = 1,167.20/x
  3. Step 3: Cross multiply
    2,051.11x = 2,831.05 × 1,167.20
  4. Step 4: Simplify right side
    2,051.11x = 3,304,401.56
  5. Step 5: Solve for x
    x = 3,304,401.56/2,051.11
  6. Step 6: Final answer
    x = 1,611.03

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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.