Home / 7,420.65-11,135.10-3,037.80

Finding the Fourth Proportional to 7,420.65, 11,135.10 and 3,037.80

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Solution

The fourth proportional to 7,420.65, 11,135.10 and 3,037.80 is: 4,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.65 : 11,135.10 = 3,037.80 : x
  2. Step 2: Convert to fraction form
    7,420.65/11,135.10 = 3,037.80/x
  3. Step 3: Cross multiply
    7,420.65x = 11,135.10 × 3,037.80
  4. Step 4: Simplify right side
    7,420.65x = 33,826,206.78
  5. Step 5: Solve for x
    x = 33,826,206.78/7,420.65
  6. Step 6: Final answer
    x = 4,558.39

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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.