Home / 2,045.49-2,822.79-1,161.31

Finding the Fourth Proportional to 2,045.49, 2,822.79 and 1,161.31

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Solution

The fourth proportional to 2,045.49, 2,822.79 and 1,161.31 is: 1,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.49 : 2,822.79 = 1,161.31 : x
  2. Step 2: Convert to fraction form
    2,045.49/2,822.79 = 1,161.31/x
  3. Step 3: Cross multiply
    2,045.49x = 2,822.79 × 1,161.31
  4. Step 4: Simplify right side
    2,045.49x = 3,278,120.14
  5. Step 5: Solve for x
    x = 3,278,120.14/2,045.49
  6. Step 6: Final answer
    x = 1,602.61

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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.