Home / 5,181.51-7,772.27-1,285.92

Finding the Fourth Proportional to 5,181.51, 7,772.27 and 1,285.92

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Solution

The fourth proportional to 5,181.51, 7,772.27 and 1,285.92 is: 1,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.51 : 7,772.27 = 1,285.92 : x
  2. Step 2: Convert to fraction form
    5,181.51/7,772.27 = 1,285.92/x
  3. Step 3: Cross multiply
    5,181.51x = 7,772.27 × 1,285.92
  4. Step 4: Simplify right side
    5,181.51x = 9,994,491.58
  5. Step 5: Solve for x
    x = 9,994,491.58/5,181.51
  6. Step 6: Final answer
    x = 1,928.88

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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.