Home / 3,071.10-4,604.40-1,221.30

Finding the Fourth Proportional to 3,071.10, 4,604.40 and 1,221.30

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Solution

The fourth proportional to 3,071.10, 4,604.40 and 1,221.30 is: 1,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.10 : 4,604.40 = 1,221.30 : x
  2. Step 2: Convert to fraction form
    3,071.10/4,604.40 = 1,221.30/x
  3. Step 3: Cross multiply
    3,071.10x = 4,604.40 × 1,221.30
  4. Step 4: Simplify right side
    3,071.10x = 5,623,353.72
  5. Step 5: Solve for x
    x = 5,623,353.72/3,071.10
  6. Step 6: Final answer
    x = 1,831.06

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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.