Home / 2,431.30-3,645.15-1,649.35

Finding the Fourth Proportional to 2,431.30, 3,645.15 and 1,649.35

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Solution

The fourth proportional to 2,431.30, 3,645.15 and 1,649.35 is: 2,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.30 : 3,645.15 = 1,649.35 : x
  2. Step 2: Convert to fraction form
    2,431.30/3,645.15 = 1,649.35/x
  3. Step 3: Cross multiply
    2,431.30x = 3,645.15 × 1,649.35
  4. Step 4: Simplify right side
    2,431.30x = 6,012,128.15
  5. Step 5: Solve for x
    x = 6,012,128.15/2,431.30
  6. Step 6: Final answer
    x = 2,472.80

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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.