Home / 2,260.85-3,120.05-1,266.08

Finding the Fourth Proportional to 2,260.85, 3,120.05 and 1,266.08

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Solution

The fourth proportional to 2,260.85, 3,120.05 and 1,266.08 is: 1,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.85 : 3,120.05 = 1,266.08 : x
  2. Step 2: Convert to fraction form
    2,260.85/3,120.05 = 1,266.08/x
  3. Step 3: Cross multiply
    2,260.85x = 3,120.05 × 1,266.08
  4. Step 4: Simplify right side
    2,260.85x = 3,950,220.47
  5. Step 5: Solve for x
    x = 3,950,220.47/2,260.85
  6. Step 6: Final answer
    x = 1,747.23

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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.