Home / 1,568.27-2,164.19-860.09

Finding the Fourth Proportional to 1,568.27, 2,164.19 and 860.09

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Solution

The fourth proportional to 1,568.27, 2,164.19 and 860.09 is: 1,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.27 : 2,164.19 = 860.09 : x
  2. Step 2: Convert to fraction form
    1,568.27/2,164.19 = 860.09/x
  3. Step 3: Cross multiply
    1,568.27x = 2,164.19 × 860.09
  4. Step 4: Simplify right side
    1,568.27x = 1,861,394.92
  5. Step 5: Solve for x
    x = 1,861,394.92/1,568.27
  6. Step 6: Final answer
    x = 1,186.91

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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.