Home / 6,989.79-10,489.38-2,607.24

Finding the Fourth Proportional to 6,989.79, 10,489.38 and 2,607.24

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Solution

The fourth proportional to 6,989.79, 10,489.38 and 2,607.24 is: 3,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.79 : 10,489.38 = 2,607.24 : x
  2. Step 2: Convert to fraction form
    6,989.79/10,489.38 = 2,607.24/x
  3. Step 3: Cross multiply
    6,989.79x = 10,489.38 × 2,607.24
  4. Step 4: Simplify right side
    6,989.79x = 27,348,331.11
  5. Step 5: Solve for x
    x = 27,348,331.11/6,989.79
  6. Step 6: Final answer
    x = 3,912.61

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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.