Home / 6,610.08-9,120.80-3,815.04

Finding the Fourth Proportional to 6,610.08, 9,120.80 and 3,815.04

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Solution

The fourth proportional to 6,610.08, 9,120.80 and 3,815.04 is: 5,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.08 : 9,120.80 = 3,815.04 : x
  2. Step 2: Convert to fraction form
    6,610.08/9,120.80 = 3,815.04/x
  3. Step 3: Cross multiply
    6,610.08x = 9,120.80 × 3,815.04
  4. Step 4: Simplify right side
    6,610.08x = 34,796,216.83
  5. Step 5: Solve for x
    x = 34,796,216.83/6,610.08
  6. Step 6: Final answer
    x = 5,264.11

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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.