Home / 5,386.83-8,077.92-2,099.15

Finding the Fourth Proportional to 5,386.83, 8,077.92 and 2,099.15

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Solution

The fourth proportional to 5,386.83, 8,077.92 and 2,099.15 is: 3,147.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.83 : 8,077.92 = 2,099.15 : x
  2. Step 2: Convert to fraction form
    5,386.83/8,077.92 = 2,099.15/x
  3. Step 3: Cross multiply
    5,386.83x = 8,077.92 × 2,099.15
  4. Step 4: Simplify right side
    5,386.83x = 16,956,725.38
  5. Step 5: Solve for x
    x = 16,956,725.38/5,386.83
  6. Step 6: Final answer
    x = 3,147.81

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1.5x scale

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.