Home / 3,935.34-5,436.73-2,938.90

Finding the Fourth Proportional to 3,935.34, 5,436.73 and 2,938.90

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Solution

The fourth proportional to 3,935.34, 5,436.73 and 2,938.90 is: 4,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.34 : 5,436.73 = 2,938.90 : x
  2. Step 2: Convert to fraction form
    3,935.34/5,436.73 = 2,938.90/x
  3. Step 3: Cross multiply
    3,935.34x = 5,436.73 × 2,938.90
  4. Step 4: Simplify right side
    3,935.34x = 15,977,978.61
  5. Step 5: Solve for x
    x = 15,977,978.61/3,935.34
  6. Step 6: Final answer
    x = 4,060.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.