Home / 2,805.39-4,206.69-1,635.81

Finding the Fourth Proportional to 2,805.39, 4,206.69 and 1,635.81

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Solution

The fourth proportional to 2,805.39, 4,206.69 and 1,635.81 is: 2,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.39 : 4,206.69 = 1,635.81 : x
  2. Step 2: Convert to fraction form
    2,805.39/4,206.69 = 1,635.81/x
  3. Step 3: Cross multiply
    2,805.39x = 4,206.69 × 1,635.81
  4. Step 4: Simplify right side
    2,805.39x = 6,881,345.57
  5. Step 5: Solve for x
    x = 6,881,345.57/2,805.39
  6. Step 6: Final answer
    x = 2,452.90

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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.