Home / 6,428.30-9,639.02-3,047.54

Finding the Fourth Proportional to 6,428.30, 9,639.02 and 3,047.54

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Solution

The fourth proportional to 6,428.30, 9,639.02 and 3,047.54 is: 4,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.30 : 9,639.02 = 3,047.54 : x
  2. Step 2: Convert to fraction form
    6,428.30/9,639.02 = 3,047.54/x
  3. Step 3: Cross multiply
    6,428.30x = 9,639.02 × 3,047.54
  4. Step 4: Simplify right side
    6,428.30x = 29,375,299.01
  5. Step 5: Solve for x
    x = 29,375,299.01/6,428.30
  6. Step 6: Final answer
    x = 4,569.68

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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.