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Finding the Fourth Proportional to 6,434.74, 8,879.21 and 3,601.72

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Solution

The fourth proportional to 6,434.74, 8,879.21 and 3,601.72 is: 4,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.74 : 8,879.21 = 3,601.72 : x
  2. Step 2: Convert to fraction form
    6,434.74/8,879.21 = 3,601.72/x
  3. Step 3: Cross multiply
    6,434.74x = 8,879.21 × 3,601.72
  4. Step 4: Simplify right side
    6,434.74x = 31,980,434.84
  5. Step 5: Solve for x
    x = 31,980,434.84/6,434.74
  6. Step 6: Final answer
    x = 4,969.96

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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.