Home / 5,161.56-7,120.65-3,064.47

Finding the Fourth Proportional to 5,161.56, 7,120.65 and 3,064.47

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Solution

The fourth proportional to 5,161.56, 7,120.65 and 3,064.47 is: 4,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.56 : 7,120.65 = 3,064.47 : x
  2. Step 2: Convert to fraction form
    5,161.56/7,120.65 = 3,064.47/x
  3. Step 3: Cross multiply
    5,161.56x = 7,120.65 × 3,064.47
  4. Step 4: Simplify right side
    5,161.56x = 21,821,018.31
  5. Step 5: Solve for x
    x = 21,821,018.31/5,161.56
  6. Step 6: Final answer
    x = 4,227.60

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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.