Home / 5,453.31-7,520.79-4,192.14

Finding the Fourth Proportional to 5,453.31, 7,520.79 and 4,192.14

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Solution

The fourth proportional to 5,453.31, 7,520.79 and 4,192.14 is: 5,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.31 : 7,520.79 = 4,192.14 : x
  2. Step 2: Convert to fraction form
    5,453.31/7,520.79 = 4,192.14/x
  3. Step 3: Cross multiply
    5,453.31x = 7,520.79 × 4,192.14
  4. Step 4: Simplify right side
    5,453.31x = 31,528,204.59
  5. Step 5: Solve for x
    x = 31,528,204.59/5,453.31
  6. Step 6: Final answer
    x = 5,781.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.