Home / 1,916.88-2,872.60-1,482

Finding the Fourth Proportional to 1,916.88, 2,872.60 and 1,482

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Solution

The fourth proportional to 1,916.88, 2,872.60 and 1,482 is: 2,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.88 : 2,872.60 = 1,482 : x
  2. Step 2: Convert to fraction form
    1,916.88/2,872.60 = 1,482/x
  3. Step 3: Cross multiply
    1,916.88x = 2,872.60 × 1,482
  4. Step 4: Simplify right side
    1,916.88x = 4,257,193.20
  5. Step 5: Solve for x
    x = 4,257,193.20/1,916.88
  6. Step 6: Final answer
    x = 2,220.90

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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.