Home / 7,452.10-11,178.25-1,905.49

Finding the Fourth Proportional to 7,452.10, 11,178.25 and 1,905.49

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Solution

The fourth proportional to 7,452.10, 11,178.25 and 1,905.49 is: 2,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.10 : 11,178.25 = 1,905.49 : x
  2. Step 2: Convert to fraction form
    7,452.10/11,178.25 = 1,905.49/x
  3. Step 3: Cross multiply
    7,452.10x = 11,178.25 × 1,905.49
  4. Step 4: Simplify right side
    7,452.10x = 21,300,063.52
  5. Step 5: Solve for x
    x = 21,300,063.52/7,452.10
  6. Step 6: Final answer
    x = 2,858.26

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1.5x scale

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.