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Finding the Fourth Proportional to 6,990.96, 9,651.52 and 4,636.30

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Solution

The fourth proportional to 6,990.96, 9,651.52 and 4,636.30 is: 6,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.96 : 9,651.52 = 4,636.30 : x
  2. Step 2: Convert to fraction form
    6,990.96/9,651.52 = 4,636.30/x
  3. Step 3: Cross multiply
    6,990.96x = 9,651.52 × 4,636.30
  4. Step 4: Simplify right side
    6,990.96x = 44,747,342.18
  5. Step 5: Solve for x
    x = 44,747,342.18/6,990.96
  6. Step 6: Final answer
    x = 6,400.74

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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.