Home / 4,905.52-7,358.24-1,983.78

Finding the Fourth Proportional to 4,905.52, 7,358.24 and 1,983.78

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Solution

The fourth proportional to 4,905.52, 7,358.24 and 1,983.78 is: 2,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.52 : 7,358.24 = 1,983.78 : x
  2. Step 2: Convert to fraction form
    4,905.52/7,358.24 = 1,983.78/x
  3. Step 3: Cross multiply
    4,905.52x = 7,358.24 × 1,983.78
  4. Step 4: Simplify right side
    4,905.52x = 14,597,129.35
  5. Step 5: Solve for x
    x = 14,597,129.35/4,905.52
  6. Step 6: Final answer
    x = 2,975.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.