Home / 7,200.90-10,798.38-2,758.05

Finding the Fourth Proportional to 7,200.90, 10,798.38 and 2,758.05

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Solution

The fourth proportional to 7,200.90, 10,798.38 and 2,758.05 is: 4,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.90 : 10,798.38 = 2,758.05 : x
  2. Step 2: Convert to fraction form
    7,200.90/10,798.38 = 2,758.05/x
  3. Step 3: Cross multiply
    7,200.90x = 10,798.38 × 2,758.05
  4. Step 4: Simplify right side
    7,200.90x = 29,782,471.96
  5. Step 5: Solve for x
    x = 29,782,471.96/7,200.90
  6. Step 6: Final answer
    x = 4,135.94

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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.