Home / 5,243.16-7,864.82-1,347.57

Finding the Fourth Proportional to 5,243.16, 7,864.82 and 1,347.57

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Solution

The fourth proportional to 5,243.16, 7,864.82 and 1,347.57 is: 2,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.16 : 7,864.82 = 1,347.57 : x
  2. Step 2: Convert to fraction form
    5,243.16/7,864.82 = 1,347.57/x
  3. Step 3: Cross multiply
    5,243.16x = 7,864.82 × 1,347.57
  4. Step 4: Simplify right side
    5,243.16x = 10,598,388.75
  5. Step 5: Solve for x
    x = 10,598,388.75/5,243.16
  6. Step 6: Final answer
    x = 2,021.37

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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.