Home / 6,442.56-9,663.84-2,979.36

Finding the Fourth Proportional to 6,442.56, 9,663.84 and 2,979.36

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Solution

The fourth proportional to 6,442.56, 9,663.84 and 2,979.36 is: 4,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442.56 : 9,663.84 = 2,979.36 : x
  2. Step 2: Convert to fraction form
    6,442.56/9,663.84 = 2,979.36/x
  3. Step 3: Cross multiply
    6,442.56x = 9,663.84 × 2,979.36
  4. Step 4: Simplify right side
    6,442.56x = 28,792,058.34
  5. Step 5: Solve for x
    x = 28,792,058.34/6,442.56
  6. Step 6: Final answer
    x = 4,469.04

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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.