Home / 1,612.82-2,224.25-1,089.56

Finding the Fourth Proportional to 1,612.82, 2,224.25 and 1,089.56

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Solution

The fourth proportional to 1,612.82, 2,224.25 and 1,089.56 is: 1,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.82 : 2,224.25 = 1,089.56 : x
  2. Step 2: Convert to fraction form
    1,612.82/2,224.25 = 1,089.56/x
  3. Step 3: Cross multiply
    1,612.82x = 2,224.25 × 1,089.56
  4. Step 4: Simplify right side
    1,612.82x = 2,423,437.26
  5. Step 5: Solve for x
    x = 2,423,437.26/1,612.82
  6. Step 6: Final answer
    x = 1,502.61

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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.