Home / 7,449.75-11,174.62-1,902.90

Finding the Fourth Proportional to 7,449.75, 11,174.62 and 1,902.90

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Solution

The fourth proportional to 7,449.75, 11,174.62 and 1,902.90 is: 2,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.75 : 11,174.62 = 1,902.90 : x
  2. Step 2: Convert to fraction form
    7,449.75/11,174.62 = 1,902.90/x
  3. Step 3: Cross multiply
    7,449.75x = 11,174.62 × 1,902.90
  4. Step 4: Simplify right side
    7,449.75x = 21,264,184.40
  5. Step 5: Solve for x
    x = 21,264,184.40/7,449.75
  6. Step 6: Final answer
    x = 2,854.35

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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.