Home / 7,357.20-11,039.28-2,977.68

Finding the Fourth Proportional to 7,357.20, 11,039.28 and 2,977.68

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Solution

The fourth proportional to 7,357.20, 11,039.28 and 2,977.68 is: 4,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.20 : 11,039.28 = 2,977.68 : x
  2. Step 2: Convert to fraction form
    7,357.20/11,039.28 = 2,977.68/x
  3. Step 3: Cross multiply
    7,357.20x = 11,039.28 × 2,977.68
  4. Step 4: Simplify right side
    7,357.20x = 32,871,443.27
  5. Step 5: Solve for x
    x = 32,871,443.27/7,357.20
  6. Step 6: Final answer
    x = 4,467.93

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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.