Home / 5,428.52-7,490.93-3,159.51

Finding the Fourth Proportional to 5,428.52, 7,490.93 and 3,159.51

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Solution

The fourth proportional to 5,428.52, 7,490.93 and 3,159.51 is: 4,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.52 : 7,490.93 = 3,159.51 : x
  2. Step 2: Convert to fraction form
    5,428.52/7,490.93 = 3,159.51/x
  3. Step 3: Cross multiply
    5,428.52x = 7,490.93 × 3,159.51
  4. Step 4: Simplify right side
    5,428.52x = 23,667,652.45
  5. Step 5: Solve for x
    x = 23,667,652.45/5,428.52
  6. Step 6: Final answer
    x = 4,359.88

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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.