Home / 2,169.17-2,993.51-1,225.27

Finding the Fourth Proportional to 2,169.17, 2,993.51 and 1,225.27

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Solution

The fourth proportional to 2,169.17, 2,993.51 and 1,225.27 is: 1,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.17 : 2,993.51 = 1,225.27 : x
  2. Step 2: Convert to fraction form
    2,169.17/2,993.51 = 1,225.27/x
  3. Step 3: Cross multiply
    2,169.17x = 2,993.51 × 1,225.27
  4. Step 4: Simplify right side
    2,169.17x = 3,667,836.90
  5. Step 5: Solve for x
    x = 3,667,836.90/2,169.17
  6. Step 6: Final answer
    x = 1,690.89

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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.