Home / 2,682.86-3,702.58-1,621.15

Finding the Fourth Proportional to 2,682.86, 3,702.58 and 1,621.15

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Solution

The fourth proportional to 2,682.86, 3,702.58 and 1,621.15 is: 2,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.86 : 3,702.58 = 1,621.15 : x
  2. Step 2: Convert to fraction form
    2,682.86/3,702.58 = 1,621.15/x
  3. Step 3: Cross multiply
    2,682.86x = 3,702.58 × 1,621.15
  4. Step 4: Simplify right side
    2,682.86x = 6,002,424.26
  5. Step 5: Solve for x
    x = 6,002,424.26/2,682.86
  6. Step 6: Final answer
    x = 2,237.33

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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.