Home / 5,763.72-7,947.27-4,921.86

Finding the Fourth Proportional to 5,763.72, 7,947.27 and 4,921.86

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Solution

The fourth proportional to 5,763.72, 7,947.27 and 4,921.86 is: 6,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,763.72 : 7,947.27 = 4,921.86 : x
  2. Step 2: Convert to fraction form
    5,763.72/7,947.27 = 4,921.86/x
  3. Step 3: Cross multiply
    5,763.72x = 7,947.27 × 4,921.86
  4. Step 4: Simplify right side
    5,763.72x = 39,115,350.32
  5. Step 5: Solve for x
    x = 39,115,350.32/5,763.72
  6. Step 6: Final answer
    x = 6,786.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.