Home / 5,386.93-8,081.71-1,876.43

Finding the Fourth Proportional to 5,386.93, 8,081.71 and 1,876.43

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Solution

The fourth proportional to 5,386.93, 8,081.71 and 1,876.43 is: 2,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.93 : 8,081.71 = 1,876.43 : x
  2. Step 2: Convert to fraction form
    5,386.93/8,081.71 = 1,876.43/x
  3. Step 3: Cross multiply
    5,386.93x = 8,081.71 × 1,876.43
  4. Step 4: Simplify right side
    5,386.93x = 15,164,778.61
  5. Step 5: Solve for x
    x = 15,164,778.61/5,386.93
  6. Step 6: Final answer
    x = 2,815.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.