Home / 5,216.91-7,823.31-1,927.75

Finding the Fourth Proportional to 5,216.91, 7,823.31 and 1,927.75

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Solution

The fourth proportional to 5,216.91, 7,823.31 and 1,927.75 is: 2,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.91 : 7,823.31 = 1,927.75 : x
  2. Step 2: Convert to fraction form
    5,216.91/7,823.31 = 1,927.75/x
  3. Step 3: Cross multiply
    5,216.91x = 7,823.31 × 1,927.75
  4. Step 4: Simplify right side
    5,216.91x = 15,081,379.16
  5. Step 5: Solve for x
    x = 15,081,379.16/5,216.91
  6. Step 6: Final answer
    x = 2,890.87

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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.