Home / 2,862.30-3,950.21-1,603.61

Finding the Fourth Proportional to 2,862.30, 3,950.21 and 1,603.61

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Solution

The fourth proportional to 2,862.30, 3,950.21 and 1,603.61 is: 2,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.30 : 3,950.21 = 1,603.61 : x
  2. Step 2: Convert to fraction form
    2,862.30/3,950.21 = 1,603.61/x
  3. Step 3: Cross multiply
    2,862.30x = 3,950.21 × 1,603.61
  4. Step 4: Simplify right side
    2,862.30x = 6,334,568.49
  5. Step 5: Solve for x
    x = 6,334,568.49/2,862.30
  6. Step 6: Final answer
    x = 2,213.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.