Home / 2,420.26-3,340.24-1,358.31

Finding the Fourth Proportional to 2,420.26, 3,340.24 and 1,358.31

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Solution

The fourth proportional to 2,420.26, 3,340.24 and 1,358.31 is: 1,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.26 : 3,340.24 = 1,358.31 : x
  2. Step 2: Convert to fraction form
    2,420.26/3,340.24 = 1,358.31/x
  3. Step 3: Cross multiply
    2,420.26x = 3,340.24 × 1,358.31
  4. Step 4: Simplify right side
    2,420.26x = 4,537,086.35
  5. Step 5: Solve for x
    x = 4,537,086.35/2,420.26
  6. Step 6: Final answer
    x = 1,874.63

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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.