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Finding the Fourth Proportional to 6,445.43, 8,894.15 and 3,574.24

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Solution

The fourth proportional to 6,445.43, 8,894.15 and 3,574.24 is: 4,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.43 : 8,894.15 = 3,574.24 : x
  2. Step 2: Convert to fraction form
    6,445.43/8,894.15 = 3,574.24/x
  3. Step 3: Cross multiply
    6,445.43x = 8,894.15 × 3,574.24
  4. Step 4: Simplify right side
    6,445.43x = 31,789,826.70
  5. Step 5: Solve for x
    x = 31,789,826.70/6,445.43
  6. Step 6: Final answer
    x = 4,932.15

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Double scale
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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.