Home / 1,915.22-2,873.85-1,038.37

Finding the Fourth Proportional to 1,915.22, 2,873.85 and 1,038.37

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Solution

The fourth proportional to 1,915.22, 2,873.85 and 1,038.37 is: 1,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.22 : 2,873.85 = 1,038.37 : x
  2. Step 2: Convert to fraction form
    1,915.22/2,873.85 = 1,038.37/x
  3. Step 3: Cross multiply
    1,915.22x = 2,873.85 × 1,038.37
  4. Step 4: Simplify right side
    1,915.22x = 2,984,122.70
  5. Step 5: Solve for x
    x = 2,984,122.70/1,915.22
  6. Step 6: Final answer
    x = 1,558.11

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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.