Home / 6,660.84-9,988.35-3,540.10

Finding the Fourth Proportional to 6,660.84, 9,988.35 and 3,540.10

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Solution

The fourth proportional to 6,660.84, 9,988.35 and 3,540.10 is: 5,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.84 : 9,988.35 = 3,540.10 : x
  2. Step 2: Convert to fraction form
    6,660.84/9,988.35 = 3,540.10/x
  3. Step 3: Cross multiply
    6,660.84x = 9,988.35 × 3,540.10
  4. Step 4: Simplify right side
    6,660.84x = 35,359,740.09
  5. Step 5: Solve for x
    x = 35,359,740.09/6,660.84
  6. Step 6: Final answer
    x = 5,308.60

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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.