Home / 2,601.12-3,896.16-2,421.32

Finding the Fourth Proportional to 2,601.12, 3,896.16 and 2,421.32

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Solution

The fourth proportional to 2,601.12, 3,896.16 and 2,421.32 is: 3,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.12 : 3,896.16 = 2,421.32 : x
  2. Step 2: Convert to fraction form
    2,601.12/3,896.16 = 2,421.32/x
  3. Step 3: Cross multiply
    2,601.12x = 3,896.16 × 2,421.32
  4. Step 4: Simplify right side
    2,601.12x = 9,433,850.13
  5. Step 5: Solve for x
    x = 9,433,850.13/2,601.12
  6. Step 6: Final answer
    x = 3,626.84

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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.