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Finding the Fourth Proportional to 6,442.60, 8,889.06 and 3,648.04

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Solution

The fourth proportional to 6,442.60, 8,889.06 and 3,648.04 is: 5,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442.60 : 8,889.06 = 3,648.04 : x
  2. Step 2: Convert to fraction form
    6,442.60/8,889.06 = 3,648.04/x
  3. Step 3: Cross multiply
    6,442.60x = 8,889.06 × 3,648.04
  4. Step 4: Simplify right side
    6,442.60x = 32,427,646.44
  5. Step 5: Solve for x
    x = 32,427,646.44/6,442.60
  6. Step 6: Final answer
    x = 5,033.32

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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.