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Finding the Fourth Proportional to 6,429.38, 9,644.08 and 1,812.38

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Solution

The fourth proportional to 6,429.38, 9,644.08 and 1,812.38 is: 2,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.38 : 9,644.08 = 1,812.38 : x
  2. Step 2: Convert to fraction form
    6,429.38/9,644.08 = 1,812.38/x
  3. Step 3: Cross multiply
    6,429.38x = 9,644.08 × 1,812.38
  4. Step 4: Simplify right side
    6,429.38x = 17,478,737.71
  5. Step 5: Solve for x
    x = 17,478,737.71/6,429.38
  6. Step 6: Final answer
    x = 2,718.57

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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.