Home / 2,661.29-3,984.95-1,877.04

Finding the Fourth Proportional to 2,661.29, 3,984.95 and 1,877.04

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Solution

The fourth proportional to 2,661.29, 3,984.95 and 1,877.04 is: 2,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.29 : 3,984.95 = 1,877.04 : x
  2. Step 2: Convert to fraction form
    2,661.29/3,984.95 = 1,877.04/x
  3. Step 3: Cross multiply
    2,661.29x = 3,984.95 × 1,877.04
  4. Step 4: Simplify right side
    2,661.29x = 7,479,901.16
  5. Step 5: Solve for x
    x = 7,479,901.16/2,661.29
  6. Step 6: Final answer
    x = 2,810.64

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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.