Home / 3,935.78-5,430.15-2,234.00

Finding the Fourth Proportional to 3,935.78, 5,430.15 and 2,234.00

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Solution

The fourth proportional to 3,935.78, 5,430.15 and 2,234.00 is: 3,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.78 : 5,430.15 = 2,234.00 : x
  2. Step 2: Convert to fraction form
    3,935.78/5,430.15 = 2,234.00/x
  3. Step 3: Cross multiply
    3,935.78x = 5,430.15 × 2,234.00
  4. Step 4: Simplify right side
    3,935.78x = 12,130,963.09
  5. Step 5: Solve for x
    x = 12,130,963.09/3,935.78
  6. Step 6: Final answer
    x = 3,082.23

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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.