Home / 5,519.76-7,620.84-3,657.84

Finding the Fourth Proportional to 5,519.76, 7,620.84 and 3,657.84

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Solution

The fourth proportional to 5,519.76, 7,620.84 and 3,657.84 is: 5,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.76 : 7,620.84 = 3,657.84 : x
  2. Step 2: Convert to fraction form
    5,519.76/7,620.84 = 3,657.84/x
  3. Step 3: Cross multiply
    5,519.76x = 7,620.84 × 3,657.84
  4. Step 4: Simplify right side
    5,519.76x = 27,875,813.39
  5. Step 5: Solve for x
    x = 27,875,813.39/5,519.76
  6. Step 6: Final answer
    x = 5,050.19

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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.