Home / 6,665.75-9,990.67-3,103.08

Finding the Fourth Proportional to 6,665.75, 9,990.67 and 3,103.08

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Solution

The fourth proportional to 6,665.75, 9,990.67 and 3,103.08 is: 4,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.75 : 9,990.67 = 3,103.08 : x
  2. Step 2: Convert to fraction form
    6,665.75/9,990.67 = 3,103.08/x
  3. Step 3: Cross multiply
    6,665.75x = 9,990.67 × 3,103.08
  4. Step 4: Simplify right side
    6,665.75x = 31,001,798.31
  5. Step 5: Solve for x
    x = 31,001,798.31/6,665.75
  6. Step 6: Final answer
    x = 4,650.91

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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.