Home / 1,747.20-2,411.13-961.23

Finding the Fourth Proportional to 1,747.20, 2,411.13 and 961.23

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Solution

The fourth proportional to 1,747.20, 2,411.13 and 961.23 is: 1,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.20 : 2,411.13 = 961.23 : x
  2. Step 2: Convert to fraction form
    1,747.20/2,411.13 = 961.23/x
  3. Step 3: Cross multiply
    1,747.20x = 2,411.13 × 961.23
  4. Step 4: Simplify right side
    1,747.20x = 2,317,663.14
  5. Step 5: Solve for x
    x = 2,317,663.14/1,747.20
  6. Step 6: Final answer
    x = 1,326.50

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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.