Home / 2,806.66-3,873.21-1,547.75

Finding the Fourth Proportional to 2,806.66, 3,873.21 and 1,547.75

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Solution

The fourth proportional to 2,806.66, 3,873.21 and 1,547.75 is: 2,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.66 : 3,873.21 = 1,547.75 : x
  2. Step 2: Convert to fraction form
    2,806.66/3,873.21 = 1,547.75/x
  3. Step 3: Cross multiply
    2,806.66x = 3,873.21 × 1,547.75
  4. Step 4: Simplify right side
    2,806.66x = 5,994,777.72
  5. Step 5: Solve for x
    x = 5,994,777.72/2,806.66
  6. Step 6: Final answer
    x = 2,135.91

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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.