Home / 7,452.18-11,178.22-1,905.51

Finding the Fourth Proportional to 7,452.18, 11,178.22 and 1,905.51

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Solution

The fourth proportional to 7,452.18, 11,178.22 and 1,905.51 is: 2,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.18 : 11,178.22 = 1,905.51 : x
  2. Step 2: Convert to fraction form
    7,452.18/11,178.22 = 1,905.51/x
  3. Step 3: Cross multiply
    7,452.18x = 11,178.22 × 1,905.51
  4. Step 4: Simplify right side
    7,452.18x = 21,300,209.99
  5. Step 5: Solve for x
    x = 21,300,209.99/7,452.18
  6. Step 6: Final answer
    x = 2,858.25

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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.