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Finding the Fourth Proportional to 4,658.31, 6,990.30 and 3,099.47

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Solution

The fourth proportional to 4,658.31, 6,990.30 and 3,099.47 is: 4,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658.31 : 6,990.30 = 3,099.47 : x
  2. Step 2: Convert to fraction form
    4,658.31/6,990.30 = 3,099.47/x
  3. Step 3: Cross multiply
    4,658.31x = 6,990.30 × 3,099.47
  4. Step 4: Simplify right side
    4,658.31x = 21,666,190.19
  5. Step 5: Solve for x
    x = 21,666,190.19/4,658.31
  6. Step 6: Final answer
    x = 4,651.08

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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.