Home / 1,872.08-2,806.52-946.48

Finding the Fourth Proportional to 1,872.08, 2,806.52 and 946.48

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Solution

The fourth proportional to 1,872.08, 2,806.52 and 946.48 is: 1,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.08 : 2,806.52 = 946.48 : x
  2. Step 2: Convert to fraction form
    1,872.08/2,806.52 = 946.48/x
  3. Step 3: Cross multiply
    1,872.08x = 2,806.52 × 946.48
  4. Step 4: Simplify right side
    1,872.08x = 2,656,315.05
  5. Step 5: Solve for x
    x = 2,656,315.05/1,872.08
  6. Step 6: Final answer
    x = 1,418.91

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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.