Home / 7,420.74-11,131.71-3,037.02

Finding the Fourth Proportional to 7,420.74, 11,131.71 and 3,037.02

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Solution

The fourth proportional to 7,420.74, 11,131.71 and 3,037.02 is: 4,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.74 : 11,131.71 = 3,037.02 : x
  2. Step 2: Convert to fraction form
    7,420.74/11,131.71 = 3,037.02/x
  3. Step 3: Cross multiply
    7,420.74x = 11,131.71 × 3,037.02
  4. Step 4: Simplify right side
    7,420.74x = 33,807,225.90
  5. Step 5: Solve for x
    x = 33,807,225.90/7,420.74
  6. Step 6: Final answer
    x = 4,555.78

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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.