Home / 6,660.89-9,991.50-3,152.54

Finding the Fourth Proportional to 6,660.89, 9,991.50 and 3,152.54

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Solution

The fourth proportional to 6,660.89, 9,991.50 and 3,152.54 is: 4,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.89 : 9,991.50 = 3,152.54 : x
  2. Step 2: Convert to fraction form
    6,660.89/9,991.50 = 3,152.54/x
  3. Step 3: Cross multiply
    6,660.89x = 9,991.50 × 3,152.54
  4. Step 4: Simplify right side
    6,660.89x = 31,498,603.41
  5. Step 5: Solve for x
    x = 31,498,603.41/6,660.89
  6. Step 6: Final answer
    x = 4,728.89

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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.