Home / 5,386.50-8,082.80-2,099.18

Finding the Fourth Proportional to 5,386.50, 8,082.80 and 2,099.18

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Solution

The fourth proportional to 5,386.50, 8,082.80 and 2,099.18 is: 3,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.50 : 8,082.80 = 2,099.18 : x
  2. Step 2: Convert to fraction form
    5,386.50/8,082.80 = 2,099.18/x
  3. Step 3: Cross multiply
    5,386.50x = 8,082.80 × 2,099.18
  4. Step 4: Simplify right side
    5,386.50x = 16,967,201.19
  5. Step 5: Solve for x
    x = 16,967,201.19/5,386.50
  6. Step 6: Final answer
    x = 3,149.95

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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.