Home / 2,207.89-3,309.81-1,283.91

Finding the Fourth Proportional to 2,207.89, 3,309.81 and 1,283.91

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Solution

The fourth proportional to 2,207.89, 3,309.81 and 1,283.91 is: 1,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.89 : 3,309.81 = 1,283.91 : x
  2. Step 2: Convert to fraction form
    2,207.89/3,309.81 = 1,283.91/x
  3. Step 3: Cross multiply
    2,207.89x = 3,309.81 × 1,283.91
  4. Step 4: Simplify right side
    2,207.89x = 4,249,498.16
  5. Step 5: Solve for x
    x = 4,249,498.16/2,207.89
  6. Step 6: Final answer
    x = 1,924.69

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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.