Home / 1,915.18-2,882.86-1,633.30

Finding the Fourth Proportional to 1,915.18, 2,882.86 and 1,633.30

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Solution

The fourth proportional to 1,915.18, 2,882.86 and 1,633.30 is: 2,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.18 : 2,882.86 = 1,633.30 : x
  2. Step 2: Convert to fraction form
    1,915.18/2,882.86 = 1,633.30/x
  3. Step 3: Cross multiply
    1,915.18x = 2,882.86 × 1,633.30
  4. Step 4: Simplify right side
    1,915.18x = 4,708,563.95
  5. Step 5: Solve for x
    x = 4,708,563.95/1,915.18
  6. Step 6: Final answer
    x = 2,458.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.