Home / 2,452.49-3,384.30-1,390.22

Finding the Fourth Proportional to 2,452.49, 3,384.30 and 1,390.22

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Solution

The fourth proportional to 2,452.49, 3,384.30 and 1,390.22 is: 1,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.49 : 3,384.30 = 1,390.22 : x
  2. Step 2: Convert to fraction form
    2,452.49/3,384.30 = 1,390.22/x
  3. Step 3: Cross multiply
    2,452.49x = 3,384.30 × 1,390.22
  4. Step 4: Simplify right side
    2,452.49x = 4,704,904.62
  5. Step 5: Solve for x
    x = 4,704,904.62/2,452.49
  6. Step 6: Final answer
    x = 1,918.42

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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.