Home / 2,011.11-2,773.92-1,225.23

Finding the Fourth Proportional to 2,011.11, 2,773.92 and 1,225.23

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Solution

The fourth proportional to 2,011.11, 2,773.92 and 1,225.23 is: 1,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.11 : 2,773.92 = 1,225.23 : x
  2. Step 2: Convert to fraction form
    2,011.11/2,773.92 = 1,225.23/x
  3. Step 3: Cross multiply
    2,011.11x = 2,773.92 × 1,225.23
  4. Step 4: Simplify right side
    2,011.11x = 3,398,690.00
  5. Step 5: Solve for x
    x = 3,398,690.00/2,011.11
  6. Step 6: Final answer
    x = 1,689.96

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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.