Home / 3,617.78-4,990.83-2,358.86

Finding the Fourth Proportional to 3,617.78, 4,990.83 and 2,358.86

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Solution

The fourth proportional to 3,617.78, 4,990.83 and 2,358.86 is: 3,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.78 : 4,990.83 = 2,358.86 : x
  2. Step 2: Convert to fraction form
    3,617.78/4,990.83 = 2,358.86/x
  3. Step 3: Cross multiply
    3,617.78x = 4,990.83 × 2,358.86
  4. Step 4: Simplify right side
    3,617.78x = 11,772,669.25
  5. Step 5: Solve for x
    x = 11,772,669.25/3,617.78
  6. Step 6: Final answer
    x = 3,254.11

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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.