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Finding the Fourth Proportional to 6,888.71, 10,334.70 and 2,144.63

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Solution

The fourth proportional to 6,888.71, 10,334.70 and 2,144.63 is: 3,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.71 : 10,334.70 = 2,144.63 : x
  2. Step 2: Convert to fraction form
    6,888.71/10,334.70 = 2,144.63/x
  3. Step 3: Cross multiply
    6,888.71x = 10,334.70 × 2,144.63
  4. Step 4: Simplify right side
    6,888.71x = 22,164,055.99
  5. Step 5: Solve for x
    x = 22,164,055.99/6,888.71
  6. Step 6: Final answer
    x = 3,217.45

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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.