Home / 3,618.30-4,992.36-2,126.28

Finding the Fourth Proportional to 3,618.30, 4,992.36 and 2,126.28

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Solution

The fourth proportional to 3,618.30, 4,992.36 and 2,126.28 is: 2,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.30 : 4,992.36 = 2,126.28 : x
  2. Step 2: Convert to fraction form
    3,618.30/4,992.36 = 2,126.28/x
  3. Step 3: Cross multiply
    3,618.30x = 4,992.36 × 2,126.28
  4. Step 4: Simplify right side
    3,618.30x = 10,615,155.22
  5. Step 5: Solve for x
    x = 10,615,155.22/3,618.30
  6. Step 6: Final answer
    x = 2,933.74

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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.