Home / 2,873.07-4,309.27-1,407.78

Finding the Fourth Proportional to 2,873.07, 4,309.27 and 1,407.78

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Solution

The fourth proportional to 2,873.07, 4,309.27 and 1,407.78 is: 2,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.07 : 4,309.27 = 1,407.78 : x
  2. Step 2: Convert to fraction form
    2,873.07/4,309.27 = 1,407.78/x
  3. Step 3: Cross multiply
    2,873.07x = 4,309.27 × 1,407.78
  4. Step 4: Simplify right side
    2,873.07x = 6,066,504.12
  5. Step 5: Solve for x
    x = 6,066,504.12/2,873.07
  6. Step 6: Final answer
    x = 2,111.51

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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.