Home / 2,431.72-3,649.20-1,133.32

Finding the Fourth Proportional to 2,431.72, 3,649.20 and 1,133.32

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Solution

The fourth proportional to 2,431.72, 3,649.20 and 1,133.32 is: 1,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.72 : 3,649.20 = 1,133.32 : x
  2. Step 2: Convert to fraction form
    2,431.72/3,649.20 = 1,133.32/x
  3. Step 3: Cross multiply
    2,431.72x = 3,649.20 × 1,133.32
  4. Step 4: Simplify right side
    2,431.72x = 4,135,711.34
  5. Step 5: Solve for x
    x = 4,135,711.34/2,431.72
  6. Step 6: Final answer
    x = 1,700.74

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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.