Home / 6,664.95-9,988.11-3,153.60

Finding the Fourth Proportional to 6,664.95, 9,988.11 and 3,153.60

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Solution

The fourth proportional to 6,664.95, 9,988.11 and 3,153.60 is: 4,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.95 : 9,988.11 = 3,153.60 : x
  2. Step 2: Convert to fraction form
    6,664.95/9,988.11 = 3,153.60/x
  3. Step 3: Cross multiply
    6,664.95x = 9,988.11 × 3,153.60
  4. Step 4: Simplify right side
    6,664.95x = 31,498,503.70
  5. Step 5: Solve for x
    x = 31,498,503.70/6,664.95
  6. Step 6: Final answer
    x = 4,725.99

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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.