Home / 3,970.15-5,481.48-3,549.16

Finding the Fourth Proportional to 3,970.15, 5,481.48 and 3,549.16

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Solution

The fourth proportional to 3,970.15, 5,481.48 and 3,549.16 is: 4,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.15 : 5,481.48 = 3,549.16 : x
  2. Step 2: Convert to fraction form
    3,970.15/5,481.48 = 3,549.16/x
  3. Step 3: Cross multiply
    3,970.15x = 5,481.48 × 3,549.16
  4. Step 4: Simplify right side
    3,970.15x = 19,454,649.56
  5. Step 5: Solve for x
    x = 19,454,649.56/3,970.15
  6. Step 6: Final answer
    x = 4,900.23

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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.