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Finding the Fourth Proportional to 1,810.22, 2,715.83 and 886.30

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Solution

The fourth proportional to 1,810.22, 2,715.83 and 886.30 is: 1,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.22 : 2,715.83 = 886.30 : x
  2. Step 2: Convert to fraction form
    1,810.22/2,715.83 = 886.30/x
  3. Step 3: Cross multiply
    1,810.22x = 2,715.83 × 886.30
  4. Step 4: Simplify right side
    1,810.22x = 2,407,040.13
  5. Step 5: Solve for x
    x = 2,407,040.13/1,810.22
  6. Step 6: Final answer
    x = 1,329.69

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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.