Home / 5,192.79-7,785.41-2,071.86

Finding the Fourth Proportional to 5,192.79, 7,785.41 and 2,071.86

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Solution

The fourth proportional to 5,192.79, 7,785.41 and 2,071.86 is: 3,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.79 : 7,785.41 = 2,071.86 : x
  2. Step 2: Convert to fraction form
    5,192.79/7,785.41 = 2,071.86/x
  3. Step 3: Cross multiply
    5,192.79x = 7,785.41 × 2,071.86
  4. Step 4: Simplify right side
    5,192.79x = 16,130,230.28
  5. Step 5: Solve for x
    x = 16,130,230.28/5,192.79
  6. Step 6: Final answer
    x = 3,106.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.