Home / 6,609.18-9,120.87-3,775.95

Finding the Fourth Proportional to 6,609.18, 9,120.87 and 3,775.95

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Solution

The fourth proportional to 6,609.18, 9,120.87 and 3,775.95 is: 5,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.18 : 9,120.87 = 3,775.95 : x
  2. Step 2: Convert to fraction form
    6,609.18/9,120.87 = 3,775.95/x
  3. Step 3: Cross multiply
    6,609.18x = 9,120.87 × 3,775.95
  4. Step 4: Simplify right side
    6,609.18x = 34,439,949.08
  5. Step 5: Solve for x
    x = 34,439,949.08/6,609.18
  6. Step 6: Final answer
    x = 5,210.93

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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.