Home / 5,176.94-7,765.32-1,281.34

Finding the Fourth Proportional to 5,176.94, 7,765.32 and 1,281.34

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Solution

The fourth proportional to 5,176.94, 7,765.32 and 1,281.34 is: 1,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.94 : 7,765.32 = 1,281.34 : x
  2. Step 2: Convert to fraction form
    5,176.94/7,765.32 = 1,281.34/x
  3. Step 3: Cross multiply
    5,176.94x = 7,765.32 × 1,281.34
  4. Step 4: Simplify right side
    5,176.94x = 9,949,976.30
  5. Step 5: Solve for x
    x = 9,949,976.30/5,176.94
  6. Step 6: Final answer
    x = 1,921.98

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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.