Home / 5,470.21-7,549.57-3,081.09

Finding the Fourth Proportional to 5,470.21, 7,549.57 and 3,081.09

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Solution

The fourth proportional to 5,470.21, 7,549.57 and 3,081.09 is: 4,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.21 : 7,549.57 = 3,081.09 : x
  2. Step 2: Convert to fraction form
    5,470.21/7,549.57 = 3,081.09/x
  3. Step 3: Cross multiply
    5,470.21x = 7,549.57 × 3,081.09
  4. Step 4: Simplify right side
    5,470.21x = 23,260,904.63
  5. Step 5: Solve for x
    x = 23,260,904.63/5,470.21
  6. Step 6: Final answer
    x = 4,252.29

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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.