Home / 5,219.41-7,203.28-2,981.62

Finding the Fourth Proportional to 5,219.41, 7,203.28 and 2,981.62

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Solution

The fourth proportional to 5,219.41, 7,203.28 and 2,981.62 is: 4,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.41 : 7,203.28 = 2,981.62 : x
  2. Step 2: Convert to fraction form
    5,219.41/7,203.28 = 2,981.62/x
  3. Step 3: Cross multiply
    5,219.41x = 7,203.28 × 2,981.62
  4. Step 4: Simplify right side
    5,219.41x = 21,477,392.79
  5. Step 5: Solve for x
    x = 21,477,392.79/5,219.41
  6. Step 6: Final answer
    x = 4,114.91

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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.