Home / 2,669.40-3,999.30-2,362.20

Finding the Fourth Proportional to 2,669.40, 3,999.30 and 2,362.20

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Solution

The fourth proportional to 2,669.40, 3,999.30 and 2,362.20 is: 3,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.40 : 3,999.30 = 2,362.20 : x
  2. Step 2: Convert to fraction form
    2,669.40/3,999.30 = 2,362.20/x
  3. Step 3: Cross multiply
    2,669.40x = 3,999.30 × 2,362.20
  4. Step 4: Simplify right side
    2,669.40x = 9,447,146.46
  5. Step 5: Solve for x
    x = 9,447,146.46/2,669.40
  6. Step 6: Final answer
    x = 3,539.05

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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.