Home / 3,549.17-5,321.70-1,208.40

Finding the Fourth Proportional to 3,549.17, 5,321.70 and 1,208.40

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Solution

The fourth proportional to 3,549.17, 5,321.70 and 1,208.40 is: 1,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.17 : 5,321.70 = 1,208.40 : x
  2. Step 2: Convert to fraction form
    3,549.17/5,321.70 = 1,208.40/x
  3. Step 3: Cross multiply
    3,549.17x = 5,321.70 × 1,208.40
  4. Step 4: Simplify right side
    3,549.17x = 6,430,742.28
  5. Step 5: Solve for x
    x = 6,430,742.28/3,549.17
  6. Step 6: Final answer
    x = 1,811.90

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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.