Home / 5,143.16-7,097.52-2,905.76

Finding the Fourth Proportional to 5,143.16, 7,097.52 and 2,905.76

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Solution

The fourth proportional to 5,143.16, 7,097.52 and 2,905.76 is: 4,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.16 : 7,097.52 = 2,905.76 : x
  2. Step 2: Convert to fraction form
    5,143.16/7,097.52 = 2,905.76/x
  3. Step 3: Cross multiply
    5,143.16x = 7,097.52 × 2,905.76
  4. Step 4: Simplify right side
    5,143.16x = 20,623,654.23
  5. Step 5: Solve for x
    x = 20,623,654.23/5,143.16
  6. Step 6: Final answer
    x = 4,009.92

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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.