Home / 6,399.19-8,830.75-3,566.56

Finding the Fourth Proportional to 6,399.19, 8,830.75 and 3,566.56

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Solution

The fourth proportional to 6,399.19, 8,830.75 and 3,566.56 is: 4,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.19 : 8,830.75 = 3,566.56 : x
  2. Step 2: Convert to fraction form
    6,399.19/8,830.75 = 3,566.56/x
  3. Step 3: Cross multiply
    6,399.19x = 8,830.75 × 3,566.56
  4. Step 4: Simplify right side
    6,399.19x = 31,495,399.72
  5. Step 5: Solve for x
    x = 31,495,399.72/6,399.19
  6. Step 6: Final answer
    x = 4,921.78

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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.