Home / 2,253.42-3,378.51-1,020.20

Finding the Fourth Proportional to 2,253.42, 3,378.51 and 1,020.20

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Solution

The fourth proportional to 2,253.42, 3,378.51 and 1,020.20 is: 1,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.42 : 3,378.51 = 1,020.20 : x
  2. Step 2: Convert to fraction form
    2,253.42/3,378.51 = 1,020.20/x
  3. Step 3: Cross multiply
    2,253.42x = 3,378.51 × 1,020.20
  4. Step 4: Simplify right side
    2,253.42x = 3,446,739.01
  5. Step 5: Solve for x
    x = 3,446,739.01/2,253.42
  6. Step 6: Final answer
    x = 1,529.56

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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.