Home / 5,219.14-7,827.87-1,931.48

Finding the Fourth Proportional to 5,219.14, 7,827.87 and 1,931.48

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Solution

The fourth proportional to 5,219.14, 7,827.87 and 1,931.48 is: 2,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.14 : 7,827.87 = 1,931.48 : x
  2. Step 2: Convert to fraction form
    5,219.14/7,827.87 = 1,931.48/x
  3. Step 3: Cross multiply
    5,219.14x = 7,827.87 × 1,931.48
  4. Step 4: Simplify right side
    5,219.14x = 15,119,374.35
  5. Step 5: Solve for x
    x = 15,119,374.35/5,219.14
  6. Step 6: Final answer
    x = 2,896.91

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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.