Home / 2,207.90-3,312.44-1,282.57

Finding the Fourth Proportional to 2,207.90, 3,312.44 and 1,282.57

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Solution

The fourth proportional to 2,207.90, 3,312.44 and 1,282.57 is: 1,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.90 : 3,312.44 = 1,282.57 : x
  2. Step 2: Convert to fraction form
    2,207.90/3,312.44 = 1,282.57/x
  3. Step 3: Cross multiply
    2,207.90x = 3,312.44 × 1,282.57
  4. Step 4: Simplify right side
    2,207.90x = 4,248,441.81
  5. Step 5: Solve for x
    x = 4,248,441.81/2,207.90
  6. Step 6: Final answer
    x = 1,924.20

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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.