Home / 2,367.68-3,270.47-1,921.20

Finding the Fourth Proportional to 2,367.68, 3,270.47 and 1,921.20

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Solution

The fourth proportional to 2,367.68, 3,270.47 and 1,921.20 is: 2,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,367.68 : 3,270.47 = 1,921.20 : x
  2. Step 2: Convert to fraction form
    2,367.68/3,270.47 = 1,921.20/x
  3. Step 3: Cross multiply
    2,367.68x = 3,270.47 × 1,921.20
  4. Step 4: Simplify right side
    2,367.68x = 6,283,217.36
  5. Step 5: Solve for x
    x = 6,283,217.36/2,367.68
  6. Step 6: Final answer
    x = 2,653.75

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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.