Home / 6,981.05-10,459.28-3,686.89

Finding the Fourth Proportional to 6,981.05, 10,459.28 and 3,686.89

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Solution

The fourth proportional to 6,981.05, 10,459.28 and 3,686.89 is: 5,523.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.05 : 10,459.28 = 3,686.89 : x
  2. Step 2: Convert to fraction form
    6,981.05/10,459.28 = 3,686.89/x
  3. Step 3: Cross multiply
    6,981.05x = 10,459.28 × 3,686.89
  4. Step 4: Simplify right side
    6,981.05x = 38,562,144.11
  5. Step 5: Solve for x
    x = 38,562,144.11/6,981.05
  6. Step 6: Final answer
    x = 5,523.83

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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.