Home / 2,402.12-3,602.30-1,231.74

Finding the Fourth Proportional to 2,402.12, 3,602.30 and 1,231.74

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Solution

The fourth proportional to 2,402.12, 3,602.30 and 1,231.74 is: 1,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.12 : 3,602.30 = 1,231.74 : x
  2. Step 2: Convert to fraction form
    2,402.12/3,602.30 = 1,231.74/x
  3. Step 3: Cross multiply
    2,402.12x = 3,602.30 × 1,231.74
  4. Step 4: Simplify right side
    2,402.12x = 4,437,090.84
  5. Step 5: Solve for x
    x = 4,437,090.84/2,402.12
  6. Step 6: Final answer
    x = 1,847.16

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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.