Home / 9,180.79-13,771.23-2,255.29

Finding the Fourth Proportional to 9,180.79, 13,771.23 and 2,255.29

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Solution

The fourth proportional to 9,180.79, 13,771.23 and 2,255.29 is: 3,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.79 : 13,771.23 = 2,255.29 : x
  2. Step 2: Convert to fraction form
    9,180.79/13,771.23 = 2,255.29/x
  3. Step 3: Cross multiply
    9,180.79x = 13,771.23 × 2,255.29
  4. Step 4: Simplify right side
    9,180.79x = 31,058,117.31
  5. Step 5: Solve for x
    x = 31,058,117.31/9,180.79
  6. Step 6: Final answer
    x = 3,382.95

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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.