Home / 7,200.38-10,778.70-5,552.84

Finding the Fourth Proportional to 7,200.38, 10,778.70 and 5,552.84

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Solution

The fourth proportional to 7,200.38, 10,778.70 and 5,552.84 is: 8,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.38 : 10,778.70 = 5,552.84 : x
  2. Step 2: Convert to fraction form
    7,200.38/10,778.70 = 5,552.84/x
  3. Step 3: Cross multiply
    7,200.38x = 10,778.70 × 5,552.84
  4. Step 4: Simplify right side
    7,200.38x = 59,852,396.51
  5. Step 5: Solve for x
    x = 59,852,396.51/7,200.38
  6. Step 6: Final answer
    x = 8,312.39

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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.