Home / 3,157.90-4,346.67-2,224.78

Finding the Fourth Proportional to 3,157.90, 4,346.67 and 2,224.78

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Solution

The fourth proportional to 3,157.90, 4,346.67 and 2,224.78 is: 3,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.90 : 4,346.67 = 2,224.78 : x
  2. Step 2: Convert to fraction form
    3,157.90/4,346.67 = 2,224.78/x
  3. Step 3: Cross multiply
    3,157.90x = 4,346.67 × 2,224.78
  4. Step 4: Simplify right side
    3,157.90x = 9,670,384.48
  5. Step 5: Solve for x
    x = 9,670,384.48/3,157.90
  6. Step 6: Final answer
    x = 3,062.28

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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.