Home / 1,876.18-2,808.15-1,382.39

Finding the Fourth Proportional to 1,876.18, 2,808.15 and 1,382.39

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Solution

The fourth proportional to 1,876.18, 2,808.15 and 1,382.39 is: 2,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.18 : 2,808.15 = 1,382.39 : x
  2. Step 2: Convert to fraction form
    1,876.18/2,808.15 = 1,382.39/x
  3. Step 3: Cross multiply
    1,876.18x = 2,808.15 × 1,382.39
  4. Step 4: Simplify right side
    1,876.18x = 3,881,958.48
  5. Step 5: Solve for x
    x = 3,881,958.48/1,876.18
  6. Step 6: Final answer
    x = 2,069.08

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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.