Home / 2,519.08-3,779.01-787.69

Finding the Fourth Proportional to 2,519.08, 3,779.01 and 787.69

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Solution

The fourth proportional to 2,519.08, 3,779.01 and 787.69 is: 1,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.08 : 3,779.01 = 787.69 : x
  2. Step 2: Convert to fraction form
    2,519.08/3,779.01 = 787.69/x
  3. Step 3: Cross multiply
    2,519.08x = 3,779.01 × 787.69
  4. Step 4: Simplify right side
    2,519.08x = 2,976,688.39
  5. Step 5: Solve for x
    x = 2,976,688.39/2,519.08
  6. Step 6: Final answer
    x = 1,181.66

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1.5x scale

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.