Home / 2,068.80-2,853.76-1,229.24

Finding the Fourth Proportional to 2,068.80, 2,853.76 and 1,229.24

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Solution

The fourth proportional to 2,068.80, 2,853.76 and 1,229.24 is: 1,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.80 : 2,853.76 = 1,229.24 : x
  2. Step 2: Convert to fraction form
    2,068.80/2,853.76 = 1,229.24/x
  3. Step 3: Cross multiply
    2,068.80x = 2,853.76 × 1,229.24
  4. Step 4: Simplify right side
    2,068.80x = 3,507,955.94
  5. Step 5: Solve for x
    x = 3,507,955.94/2,068.80
  6. Step 6: Final answer
    x = 1,695.65

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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.