Home / 2,759.41-4,140.03-1,115.07

Finding the Fourth Proportional to 2,759.41, 4,140.03 and 1,115.07

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Solution

The fourth proportional to 2,759.41, 4,140.03 and 1,115.07 is: 1,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.41 : 4,140.03 = 1,115.07 : x
  2. Step 2: Convert to fraction form
    2,759.41/4,140.03 = 1,115.07/x
  3. Step 3: Cross multiply
    2,759.41x = 4,140.03 × 1,115.07
  4. Step 4: Simplify right side
    2,759.41x = 4,616,402.55
  5. Step 5: Solve for x
    x = 4,616,402.55/2,759.41
  6. Step 6: Final answer
    x = 1,672.97

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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.