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Finding the Fourth Proportional to 4,638.62, 6,957.66 and 1,520.66

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Solution

The fourth proportional to 4,638.62, 6,957.66 and 1,520.66 is: 2,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.62 : 6,957.66 = 1,520.66 : x
  2. Step 2: Convert to fraction form
    4,638.62/6,957.66 = 1,520.66/x
  3. Step 3: Cross multiply
    4,638.62x = 6,957.66 × 1,520.66
  4. Step 4: Simplify right side
    4,638.62x = 10,580,235.26
  5. Step 5: Solve for x
    x = 10,580,235.26/4,638.62
  6. Step 6: Final answer
    x = 2,280.90

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1.5x scale

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.