Home / 1,516.29-2,091.63-886.69

Finding the Fourth Proportional to 1,516.29, 2,091.63 and 886.69

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Solution

The fourth proportional to 1,516.29, 2,091.63 and 886.69 is: 1,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.29 : 2,091.63 = 886.69 : x
  2. Step 2: Convert to fraction form
    1,516.29/2,091.63 = 886.69/x
  3. Step 3: Cross multiply
    1,516.29x = 2,091.63 × 886.69
  4. Step 4: Simplify right side
    1,516.29x = 1,854,624.97
  5. Step 5: Solve for x
    x = 1,854,624.97/1,516.29
  6. Step 6: Final answer
    x = 1,223.13

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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.