Home / 7,521.16-11,280.62-1,974.60

Finding the Fourth Proportional to 7,521.16, 11,280.62 and 1,974.60

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Solution

The fourth proportional to 7,521.16, 11,280.62 and 1,974.60 is: 2,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.16 : 11,280.62 = 1,974.60 : x
  2. Step 2: Convert to fraction form
    7,521.16/11,280.62 = 1,974.60/x
  3. Step 3: Cross multiply
    7,521.16x = 11,280.62 × 1,974.60
  4. Step 4: Simplify right side
    7,521.16x = 22,274,712.25
  5. Step 5: Solve for x
    x = 22,274,712.25/7,521.16
  6. Step 6: Final answer
    x = 2,961.61

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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.