Home / 2,086.07-2,872.19-1,587.11

Finding the Fourth Proportional to 2,086.07, 2,872.19 and 1,587.11

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Solution

The fourth proportional to 2,086.07, 2,872.19 and 1,587.11 is: 2,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.07 : 2,872.19 = 1,587.11 : x
  2. Step 2: Convert to fraction form
    2,086.07/2,872.19 = 1,587.11/x
  3. Step 3: Cross multiply
    2,086.07x = 2,872.19 × 1,587.11
  4. Step 4: Simplify right side
    2,086.07x = 4,558,471.08
  5. Step 5: Solve for x
    x = 4,558,471.08/2,086.07
  6. Step 6: Final answer
    x = 2,185.20

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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.