Home / 2,782.69-4,175.42-1,140.62

Finding the Fourth Proportional to 2,782.69, 4,175.42 and 1,140.62

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Solution

The fourth proportional to 2,782.69, 4,175.42 and 1,140.62 is: 1,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.69 : 4,175.42 = 1,140.62 : x
  2. Step 2: Convert to fraction form
    2,782.69/4,175.42 = 1,140.62/x
  3. Step 3: Cross multiply
    2,782.69x = 4,175.42 × 1,140.62
  4. Step 4: Simplify right side
    2,782.69x = 4,762,540.98
  5. Step 5: Solve for x
    x = 4,762,540.98/2,782.69
  6. Step 6: Final answer
    x = 1,711.49

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1.5x scale

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.