Home / 6,938.73-10,389.47-3,644.87

Finding the Fourth Proportional to 6,938.73, 10,389.47 and 3,644.87

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Solution

The fourth proportional to 6,938.73, 10,389.47 and 3,644.87 is: 5,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.73 : 10,389.47 = 3,644.87 : x
  2. Step 2: Convert to fraction form
    6,938.73/10,389.47 = 3,644.87/x
  3. Step 3: Cross multiply
    6,938.73x = 10,389.47 × 3,644.87
  4. Step 4: Simplify right side
    6,938.73x = 37,868,197.35
  5. Step 5: Solve for x
    x = 37,868,197.35/6,938.73
  6. Step 6: Final answer
    x = 5,457.51

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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.