Home / 1,877.50-2,816.25-1,186.17

Finding the Fourth Proportional to 1,877.50, 2,816.25 and 1,186.17

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Solution

The fourth proportional to 1,877.50, 2,816.25 and 1,186.17 is: 1,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.50 : 2,816.25 = 1,186.17 : x
  2. Step 2: Convert to fraction form
    1,877.50/2,816.25 = 1,186.17/x
  3. Step 3: Cross multiply
    1,877.50x = 2,816.25 × 1,186.17
  4. Step 4: Simplify right side
    1,877.50x = 3,340,551.26
  5. Step 5: Solve for x
    x = 3,340,551.26/1,877.50
  6. Step 6: Final answer
    x = 1,779.26

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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.