Home / 2,012.58-2,778.33-1,266.90

Finding the Fourth Proportional to 2,012.58, 2,778.33 and 1,266.90

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Solution

The fourth proportional to 2,012.58, 2,778.33 and 1,266.90 is: 1,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.58 : 2,778.33 = 1,266.90 : x
  2. Step 2: Convert to fraction form
    2,012.58/2,778.33 = 1,266.90/x
  3. Step 3: Cross multiply
    2,012.58x = 2,778.33 × 1,266.90
  4. Step 4: Simplify right side
    2,012.58x = 3,519,866.28
  5. Step 5: Solve for x
    x = 3,519,866.28/2,012.58
  6. Step 6: Final answer
    x = 1,748.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.