Home / 2,405.51-3,318.66-1,620.08

Finding the Fourth Proportional to 2,405.51, 3,318.66 and 1,620.08

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Solution

The fourth proportional to 2,405.51, 3,318.66 and 1,620.08 is: 2,235.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.51 : 3,318.66 = 1,620.08 : x
  2. Step 2: Convert to fraction form
    2,405.51/3,318.66 = 1,620.08/x
  3. Step 3: Cross multiply
    2,405.51x = 3,318.66 × 1,620.08
  4. Step 4: Simplify right side
    2,405.51x = 5,376,478.10
  5. Step 5: Solve for x
    x = 5,376,478.10/2,405.51
  6. Step 6: Final answer
    x = 2,235.07

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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.