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Finding the Fourth Proportional to 6,426.99, 9,640.49 and 3,354.99

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Solution

The fourth proportional to 6,426.99, 9,640.49 and 3,354.99 is: 5,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.99 : 9,640.49 = 3,354.99 : x
  2. Step 2: Convert to fraction form
    6,426.99/9,640.49 = 3,354.99/x
  3. Step 3: Cross multiply
    6,426.99x = 9,640.49 × 3,354.99
  4. Step 4: Simplify right side
    6,426.99x = 32,343,730.77
  5. Step 5: Solve for x
    x = 32,343,730.77/6,426.99
  6. Step 6: Final answer
    x = 5,032.49

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Similar ratio
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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.