Home / 2,911.93-4,369.69-1,872.59

Finding the Fourth Proportional to 2,911.93, 4,369.69 and 1,872.59

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Solution

The fourth proportional to 2,911.93, 4,369.69 and 1,872.59 is: 2,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.93 : 4,369.69 = 1,872.59 : x
  2. Step 2: Convert to fraction form
    2,911.93/4,369.69 = 1,872.59/x
  3. Step 3: Cross multiply
    2,911.93x = 4,369.69 × 1,872.59
  4. Step 4: Simplify right side
    2,911.93x = 8,182,637.80
  5. Step 5: Solve for x
    x = 8,182,637.80/2,911.93
  6. Step 6: Final answer
    x = 2,810.04

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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.