Home / 4,912.10-7,312.60-4,882.90

Finding the Fourth Proportional to 4,912.10, 7,312.60 and 4,882.90

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Solution

The fourth proportional to 4,912.10, 7,312.60 and 4,882.90 is: 7,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.10 : 7,312.60 = 4,882.90 : x
  2. Step 2: Convert to fraction form
    4,912.10/7,312.60 = 4,882.90/x
  3. Step 3: Cross multiply
    4,912.10x = 7,312.60 × 4,882.90
  4. Step 4: Simplify right side
    4,912.10x = 35,706,694.54
  5. Step 5: Solve for x
    x = 35,706,694.54/4,912.10
  6. Step 6: Final answer
    x = 7,269.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.