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Finding the Fourth Proportional to 6,390.99, 9,572.58 and 3,097.13

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Solution

The fourth proportional to 6,390.99, 9,572.58 and 3,097.13 is: 4,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.99 : 9,572.58 = 3,097.13 : x
  2. Step 2: Convert to fraction form
    6,390.99/9,572.58 = 3,097.13/x
  3. Step 3: Cross multiply
    6,390.99x = 9,572.58 × 3,097.13
  4. Step 4: Simplify right side
    6,390.99x = 29,647,476.83
  5. Step 5: Solve for x
    x = 29,647,476.83/6,390.99
  6. Step 6: Final answer
    x = 4,638.95

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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.