Home / 1,663.16-2,293.38-1,279.22

Finding the Fourth Proportional to 1,663.16, 2,293.38 and 1,279.22

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Solution

The fourth proportional to 1,663.16, 2,293.38 and 1,279.22 is: 1,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.16 : 2,293.38 = 1,279.22 : x
  2. Step 2: Convert to fraction form
    1,663.16/2,293.38 = 1,279.22/x
  3. Step 3: Cross multiply
    1,663.16x = 2,293.38 × 1,279.22
  4. Step 4: Simplify right side
    1,663.16x = 2,933,726.10
  5. Step 5: Solve for x
    x = 2,933,726.10/1,663.16
  6. Step 6: Final answer
    x = 1,763.95

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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.