Home / 2,442.30-3,370.26-1,380.09

Finding the Fourth Proportional to 2,442.30, 3,370.26 and 1,380.09

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Solution

The fourth proportional to 2,442.30, 3,370.26 and 1,380.09 is: 1,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.30 : 3,370.26 = 1,380.09 : x
  2. Step 2: Convert to fraction form
    2,442.30/3,370.26 = 1,380.09/x
  3. Step 3: Cross multiply
    2,442.30x = 3,370.26 × 1,380.09
  4. Step 4: Simplify right side
    2,442.30x = 4,651,253.22
  5. Step 5: Solve for x
    x = 4,651,253.22/2,442.30
  6. Step 6: Final answer
    x = 1,904.45

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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.