Home / 7,255.70-10,883.55-2,638.10

Finding the Fourth Proportional to 7,255.70, 10,883.55 and 2,638.10

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Solution

The fourth proportional to 7,255.70, 10,883.55 and 2,638.10 is: 3,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.70 : 10,883.55 = 2,638.10 : x
  2. Step 2: Convert to fraction form
    7,255.70/10,883.55 = 2,638.10/x
  3. Step 3: Cross multiply
    7,255.70x = 10,883.55 × 2,638.10
  4. Step 4: Simplify right side
    7,255.70x = 28,711,893.26
  5. Step 5: Solve for x
    x = 28,711,893.26/7,255.70
  6. Step 6: Final answer
    x = 3,957.15

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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.