Home / 5,143.52-7,098.12-2,905.44

Finding the Fourth Proportional to 5,143.52, 7,098.12 and 2,905.44

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Solution

The fourth proportional to 5,143.52, 7,098.12 and 2,905.44 is: 4,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.52 : 7,098.12 = 2,905.44 : x
  2. Step 2: Convert to fraction form
    5,143.52/7,098.12 = 2,905.44/x
  3. Step 3: Cross multiply
    5,143.52x = 7,098.12 × 2,905.44
  4. Step 4: Simplify right side
    5,143.52x = 20,623,161.77
  5. Step 5: Solve for x
    x = 20,623,161.77/5,143.52
  6. Step 6: Final answer
    x = 4,009.55

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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.