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Finding the Fourth Proportional to 5,602.60, 8,406.60 and 4,285.90

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Solution

The fourth proportional to 5,602.60, 8,406.60 and 4,285.90 is: 6,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,602.60 : 8,406.60 = 4,285.90 : x
  2. Step 2: Convert to fraction form
    5,602.60/8,406.60 = 4,285.90/x
  3. Step 3: Cross multiply
    5,602.60x = 8,406.60 × 4,285.90
  4. Step 4: Simplify right side
    5,602.60x = 36,029,846.94
  5. Step 5: Solve for x
    x = 36,029,846.94/5,602.60
  6. Step 6: Final answer
    x = 6,430.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.