Home / 6,988.68-10,486.67-2,831.76

Finding the Fourth Proportional to 6,988.68, 10,486.67 and 2,831.76

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Solution

The fourth proportional to 6,988.68, 10,486.67 and 2,831.76 is: 4,249.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.68 : 10,486.67 = 2,831.76 : x
  2. Step 2: Convert to fraction form
    6,988.68/10,486.67 = 2,831.76/x
  3. Step 3: Cross multiply
    6,988.68x = 10,486.67 × 2,831.76
  4. Step 4: Simplify right side
    6,988.68x = 29,695,718.48
  5. Step 5: Solve for x
    x = 29,695,718.48/6,988.68
  6. Step 6: Final answer
    x = 4,249.12

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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.