Home / 5,477.76-7,555.68-3,378.24

Finding the Fourth Proportional to 5,477.76, 7,555.68 and 3,378.24

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Solution

The fourth proportional to 5,477.76, 7,555.68 and 3,378.24 is: 4,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.76 : 7,555.68 = 3,378.24 : x
  2. Step 2: Convert to fraction form
    5,477.76/7,555.68 = 3,378.24/x
  3. Step 3: Cross multiply
    5,477.76x = 7,555.68 × 3,378.24
  4. Step 4: Simplify right side
    5,477.76x = 25,524,900.40
  5. Step 5: Solve for x
    x = 25,524,900.40/5,477.76
  6. Step 6: Final answer
    x = 4,659.73

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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.