Home / 5,219.50-7,203.52-2,981.70

Finding the Fourth Proportional to 5,219.50, 7,203.52 and 2,981.70

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Solution

The fourth proportional to 5,219.50, 7,203.52 and 2,981.70 is: 4,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.50 : 7,203.52 = 2,981.70 : x
  2. Step 2: Convert to fraction form
    5,219.50/7,203.52 = 2,981.70/x
  3. Step 3: Cross multiply
    5,219.50x = 7,203.52 × 2,981.70
  4. Step 4: Simplify right side
    5,219.50x = 21,478,735.58
  5. Step 5: Solve for x
    x = 21,478,735.58/5,219.50
  6. Step 6: Final answer
    x = 4,115.09

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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.