Home / 2,351.70-3,245.51-1,357.05

Finding the Fourth Proportional to 2,351.70, 3,245.51 and 1,357.05

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Solution

The fourth proportional to 2,351.70, 3,245.51 and 1,357.05 is: 1,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.70 : 3,245.51 = 1,357.05 : x
  2. Step 2: Convert to fraction form
    2,351.70/3,245.51 = 1,357.05/x
  3. Step 3: Cross multiply
    2,351.70x = 3,245.51 × 1,357.05
  4. Step 4: Simplify right side
    2,351.70x = 4,404,312.56
  5. Step 5: Solve for x
    x = 4,404,312.56/2,351.70
  6. Step 6: Final answer
    x = 1,872.82

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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.