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Finding the Fourth Proportional to 6,549.84, 9,039.20 and 3,717.68

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Solution

The fourth proportional to 6,549.84, 9,039.20 and 3,717.68 is: 5,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,549.84 : 9,039.20 = 3,717.68 : x
  2. Step 2: Convert to fraction form
    6,549.84/9,039.20 = 3,717.68/x
  3. Step 3: Cross multiply
    6,549.84x = 9,039.20 × 3,717.68
  4. Step 4: Simplify right side
    6,549.84x = 33,604,789.27
  5. Step 5: Solve for x
    x = 33,604,789.27/6,549.84
  6. Step 6: Final answer
    x = 5,130.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.