Home / 3,927.18-5,418.85-2,602.68

Finding the Fourth Proportional to 3,927.18, 5,418.85 and 2,602.68

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Solution

The fourth proportional to 3,927.18, 5,418.85 and 2,602.68 is: 3,591.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.18 : 5,418.85 = 2,602.68 : x
  2. Step 2: Convert to fraction form
    3,927.18/5,418.85 = 2,602.68/x
  3. Step 3: Cross multiply
    3,927.18x = 5,418.85 × 2,602.68
  4. Step 4: Simplify right side
    3,927.18x = 14,103,498.92
  5. Step 5: Solve for x
    x = 14,103,498.92/3,927.18
  6. Step 6: Final answer
    x = 3,591.26

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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.