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Finding the Fourth Proportional to 6,998.89, 10,498.90 and 2,318.71

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Solution

The fourth proportional to 6,998.89, 10,498.90 and 2,318.71 is: 3,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.89 : 10,498.90 = 2,318.71 : x
  2. Step 2: Convert to fraction form
    6,998.89/10,498.90 = 2,318.71/x
  3. Step 3: Cross multiply
    6,998.89x = 10,498.90 × 2,318.71
  4. Step 4: Simplify right side
    6,998.89x = 24,343,904.42
  5. Step 5: Solve for x
    x = 24,343,904.42/6,998.89
  6. Step 6: Final answer
    x = 3,478.25

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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.