Home / 1,515.18-2,091.24-1,266.06

Finding the Fourth Proportional to 1,515.18, 2,091.24 and 1,266.06

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Solution

The fourth proportional to 1,515.18, 2,091.24 and 1,266.06 is: 1,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.18 : 2,091.24 = 1,266.06 : x
  2. Step 2: Convert to fraction form
    1,515.18/2,091.24 = 1,266.06/x
  3. Step 3: Cross multiply
    1,515.18x = 2,091.24 × 1,266.06
  4. Step 4: Simplify right side
    1,515.18x = 2,647,635.31
  5. Step 5: Solve for x
    x = 2,647,635.31/1,515.18
  6. Step 6: Final answer
    x = 1,747.41

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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.