Home / 5,208.20-7,186.82-2,970.62

Finding the Fourth Proportional to 5,208.20, 7,186.82 and 2,970.62

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Solution

The fourth proportional to 5,208.20, 7,186.82 and 2,970.62 is: 4,099.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.20 : 7,186.82 = 2,970.62 : x
  2. Step 2: Convert to fraction form
    5,208.20/7,186.82 = 2,970.62/x
  3. Step 3: Cross multiply
    5,208.20x = 7,186.82 × 2,970.62
  4. Step 4: Simplify right side
    5,208.20x = 21,349,311.23
  5. Step 5: Solve for x
    x = 21,349,311.23/5,208.20
  6. Step 6: Final answer
    x = 4,099.17

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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.