Home / 2,406.20-3,322.10-1,965.16

Finding the Fourth Proportional to 2,406.20, 3,322.10 and 1,965.16

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Solution

The fourth proportional to 2,406.20, 3,322.10 and 1,965.16 is: 2,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.20 : 3,322.10 = 1,965.16 : x
  2. Step 2: Convert to fraction form
    2,406.20/3,322.10 = 1,965.16/x
  3. Step 3: Cross multiply
    2,406.20x = 3,322.10 × 1,965.16
  4. Step 4: Simplify right side
    2,406.20x = 6,528,458.04
  5. Step 5: Solve for x
    x = 6,528,458.04/2,406.20
  6. Step 6: Final answer
    x = 2,713.18

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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.