Home / 6,990.64-10,487.77-2,608.13

Finding the Fourth Proportional to 6,990.64, 10,487.77 and 2,608.13

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Solution

The fourth proportional to 6,990.64, 10,487.77 and 2,608.13 is: 3,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.64 : 10,487.77 = 2,608.13 : x
  2. Step 2: Convert to fraction form
    6,990.64/10,487.77 = 2,608.13/x
  3. Step 3: Cross multiply
    6,990.64x = 10,487.77 × 2,608.13
  4. Step 4: Simplify right side
    6,990.64x = 27,353,415.13
  5. Step 5: Solve for x
    x = 27,353,415.13/6,990.64
  6. Step 6: Final answer
    x = 3,912.87

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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.