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Finding the Fourth Proportional to 6,435.77, 8,879.30 and 3,602.73

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Solution

The fourth proportional to 6,435.77, 8,879.30 and 3,602.73 is: 4,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.77 : 8,879.30 = 3,602.73 : x
  2. Step 2: Convert to fraction form
    6,435.77/8,879.30 = 3,602.73/x
  3. Step 3: Cross multiply
    6,435.77x = 8,879.30 × 3,602.73
  4. Step 4: Simplify right side
    6,435.77x = 31,989,658.08
  5. Step 5: Solve for x
    x = 31,989,658.08/6,435.77
  6. Step 6: Final answer
    x = 4,970.60

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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.