Home / 6,981.47-10,459.75-3,687.20

Finding the Fourth Proportional to 6,981.47, 10,459.75 and 3,687.20

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Solution

The fourth proportional to 6,981.47, 10,459.75 and 3,687.20 is: 5,524.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.47 : 10,459.75 = 3,687.20 : x
  2. Step 2: Convert to fraction form
    6,981.47/10,459.75 = 3,687.20/x
  3. Step 3: Cross multiply
    6,981.47x = 10,459.75 × 3,687.20
  4. Step 4: Simplify right side
    6,981.47x = 38,567,190.20
  5. Step 5: Solve for x
    x = 38,567,190.20/6,981.47
  6. Step 6: Final answer
    x = 5,524.22

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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.