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Finding the Fourth Proportional to 7,459.01, 11,188.24 and 1,912.40

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Solution

The fourth proportional to 7,459.01, 11,188.24 and 1,912.40 is: 2,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.01 : 11,188.24 = 1,912.40 : x
  2. Step 2: Convert to fraction form
    7,459.01/11,188.24 = 1,912.40/x
  3. Step 3: Cross multiply
    7,459.01x = 11,188.24 × 1,912.40
  4. Step 4: Simplify right side
    7,459.01x = 21,396,390.18
  5. Step 5: Solve for x
    x = 21,396,390.18/7,459.01
  6. Step 6: Final answer
    x = 2,868.53

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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.