Home / 7,621.95-11,429.49-3,461.79

Finding the Fourth Proportional to 7,621.95, 11,429.49 and 3,461.79

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Solution

The fourth proportional to 7,621.95, 11,429.49 and 3,461.79 is: 5,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.95 : 11,429.49 = 3,461.79 : x
  2. Step 2: Convert to fraction form
    7,621.95/11,429.49 = 3,461.79/x
  3. Step 3: Cross multiply
    7,621.95x = 11,429.49 × 3,461.79
  4. Step 4: Simplify right side
    7,621.95x = 39,566,494.19
  5. Step 5: Solve for x
    x = 39,566,494.19/7,621.95
  6. Step 6: Final answer
    x = 5,191.12

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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.