Home / 2,860.61-4,290.39-1,011.74

Finding the Fourth Proportional to 2,860.61, 4,290.39 and 1,011.74

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Solution

The fourth proportional to 2,860.61, 4,290.39 and 1,011.74 is: 1,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.61 : 4,290.39 = 1,011.74 : x
  2. Step 2: Convert to fraction form
    2,860.61/4,290.39 = 1,011.74/x
  3. Step 3: Cross multiply
    2,860.61x = 4,290.39 × 1,011.74
  4. Step 4: Simplify right side
    2,860.61x = 4,340,754.12
  5. Step 5: Solve for x
    x = 4,340,754.12/2,860.61
  6. Step 6: Final answer
    x = 1,517.42

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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.