Home / 2,860.43-4,290.99-1,011.17

Finding the Fourth Proportional to 2,860.43, 4,290.99 and 1,011.17

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Solution

The fourth proportional to 2,860.43, 4,290.99 and 1,011.17 is: 1,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.43 : 4,290.99 = 1,011.17 : x
  2. Step 2: Convert to fraction form
    2,860.43/4,290.99 = 1,011.17/x
  3. Step 3: Cross multiply
    2,860.43x = 4,290.99 × 1,011.17
  4. Step 4: Simplify right side
    2,860.43x = 4,338,920.36
  5. Step 5: Solve for x
    x = 4,338,920.36/2,860.43
  6. Step 6: Final answer
    x = 1,516.88

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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.