Home / 7,570.41-11,355.65-2,640.05

Finding the Fourth Proportional to 7,570.41, 11,355.65 and 2,640.05

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Solution

The fourth proportional to 7,570.41, 11,355.65 and 2,640.05 is: 3,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.41 : 11,355.65 = 2,640.05 : x
  2. Step 2: Convert to fraction form
    7,570.41/11,355.65 = 2,640.05/x
  3. Step 3: Cross multiply
    7,570.41x = 11,355.65 × 2,640.05
  4. Step 4: Simplify right side
    7,570.41x = 29,979,483.78
  5. Step 5: Solve for x
    x = 29,979,483.78/7,570.41
  6. Step 6: Final answer
    x = 3,960.09

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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.