Home / 6,445.16-8,892.72-4,086.44

Finding the Fourth Proportional to 6,445.16, 8,892.72 and 4,086.44

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Solution

The fourth proportional to 6,445.16, 8,892.72 and 4,086.44 is: 5,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.16 : 8,892.72 = 4,086.44 : x
  2. Step 2: Convert to fraction form
    6,445.16/8,892.72 = 4,086.44/x
  3. Step 3: Cross multiply
    6,445.16x = 8,892.72 × 4,086.44
  4. Step 4: Simplify right side
    6,445.16x = 36,339,566.72
  5. Step 5: Solve for x
    x = 36,339,566.72/6,445.16
  6. Step 6: Final answer
    x = 5,638.27

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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.