Home / 3,802.95-5,243.94-2,920.86

Finding the Fourth Proportional to 3,802.95, 5,243.94 and 2,920.86

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Solution

The fourth proportional to 3,802.95, 5,243.94 and 2,920.86 is: 4,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.95 : 5,243.94 = 2,920.86 : x
  2. Step 2: Convert to fraction form
    3,802.95/5,243.94 = 2,920.86/x
  3. Step 3: Cross multiply
    3,802.95x = 5,243.94 × 2,920.86
  4. Step 4: Simplify right side
    3,802.95x = 15,316,814.59
  5. Step 5: Solve for x
    x = 15,316,814.59/3,802.95
  6. Step 6: Final answer
    x = 4,027.61

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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.