Home / 2,081.66-2,872.70-1,137.47

Finding the Fourth Proportional to 2,081.66, 2,872.70 and 1,137.47

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Solution

The fourth proportional to 2,081.66, 2,872.70 and 1,137.47 is: 1,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.66 : 2,872.70 = 1,137.47 : x
  2. Step 2: Convert to fraction form
    2,081.66/2,872.70 = 1,137.47/x
  3. Step 3: Cross multiply
    2,081.66x = 2,872.70 × 1,137.47
  4. Step 4: Simplify right side
    2,081.66x = 3,267,590.02
  5. Step 5: Solve for x
    x = 3,267,590.02/2,081.66
  6. Step 6: Final answer
    x = 1,569.71

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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.