Home / 4,917.51-6,785.91-2,821.50

Finding the Fourth Proportional to 4,917.51, 6,785.91 and 2,821.50

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Solution

The fourth proportional to 4,917.51, 6,785.91 and 2,821.50 is: 3,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.51 : 6,785.91 = 2,821.50 : x
  2. Step 2: Convert to fraction form
    4,917.51/6,785.91 = 2,821.50/x
  3. Step 3: Cross multiply
    4,917.51x = 6,785.91 × 2,821.50
  4. Step 4: Simplify right side
    4,917.51x = 19,146,445.07
  5. Step 5: Solve for x
    x = 19,146,445.07/4,917.51
  6. Step 6: Final answer
    x = 3,893.52

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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.