Home / 1,916.12-2,870.82-1,365.44

Finding the Fourth Proportional to 1,916.12, 2,870.82 and 1,365.44

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Solution

The fourth proportional to 1,916.12, 2,870.82 and 1,365.44 is: 2,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.12 : 2,870.82 = 1,365.44 : x
  2. Step 2: Convert to fraction form
    1,916.12/2,870.82 = 1,365.44/x
  3. Step 3: Cross multiply
    1,916.12x = 2,870.82 × 1,365.44
  4. Step 4: Simplify right side
    1,916.12x = 3,919,932.46
  5. Step 5: Solve for x
    x = 3,919,932.46/1,916.12
  6. Step 6: Final answer
    x = 2,045.77

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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.