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Finding the Fourth Proportional to 6,394.64, 8,806.16 and 5,491.08

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Solution

The fourth proportional to 6,394.64, 8,806.16 and 5,491.08 is: 7,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394.64 : 8,806.16 = 5,491.08 : x
  2. Step 2: Convert to fraction form
    6,394.64/8,806.16 = 5,491.08/x
  3. Step 3: Cross multiply
    6,394.64x = 8,806.16 × 5,491.08
  4. Step 4: Simplify right side
    6,394.64x = 48,355,301.60
  5. Step 5: Solve for x
    x = 48,355,301.60/6,394.64
  6. Step 6: Final answer
    x = 7,561.85

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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.