Home / 2,873.05-4,309.97-1,312.69

Finding the Fourth Proportional to 2,873.05, 4,309.97 and 1,312.69

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Solution

The fourth proportional to 2,873.05, 4,309.97 and 1,312.69 is: 1,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.05 : 4,309.97 = 1,312.69 : x
  2. Step 2: Convert to fraction form
    2,873.05/4,309.97 = 1,312.69/x
  3. Step 3: Cross multiply
    2,873.05x = 4,309.97 × 1,312.69
  4. Step 4: Simplify right side
    2,873.05x = 5,657,654.52
  5. Step 5: Solve for x
    x = 5,657,654.52/2,873.05
  6. Step 6: Final answer
    x = 1,969.22

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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.