Home / 2,351.22-3,245.16-1,357.20

Finding the Fourth Proportional to 2,351.22, 3,245.16 and 1,357.20

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Solution

The fourth proportional to 2,351.22, 3,245.16 and 1,357.20 is: 1,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.22 : 3,245.16 = 1,357.20 : x
  2. Step 2: Convert to fraction form
    2,351.22/3,245.16 = 1,357.20/x
  3. Step 3: Cross multiply
    2,351.22x = 3,245.16 × 1,357.20
  4. Step 4: Simplify right side
    2,351.22x = 4,404,331.15
  5. Step 5: Solve for x
    x = 4,404,331.15/2,351.22
  6. Step 6: Final answer
    x = 1,873.21

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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.