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Finding the Fourth Proportional to 6,453.24, 8,909.72 and 4,958.40

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Solution

The fourth proportional to 6,453.24, 8,909.72 and 4,958.40 is: 6,845.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.24 : 8,909.72 = 4,958.40 : x
  2. Step 2: Convert to fraction form
    6,453.24/8,909.72 = 4,958.40/x
  3. Step 3: Cross multiply
    6,453.24x = 8,909.72 × 4,958.40
  4. Step 4: Simplify right side
    6,453.24x = 44,177,955.65
  5. Step 5: Solve for x
    x = 44,177,955.65/6,453.24
  6. Step 6: Final answer
    x = 6,845.86

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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.