Home / 5,059.31-6,981.89-2,821.33

Finding the Fourth Proportional to 5,059.31, 6,981.89 and 2,821.33

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Solution

The fourth proportional to 5,059.31, 6,981.89 and 2,821.33 is: 3,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.31 : 6,981.89 = 2,821.33 : x
  2. Step 2: Convert to fraction form
    5,059.31/6,981.89 = 2,821.33/x
  3. Step 3: Cross multiply
    5,059.31x = 6,981.89 × 2,821.33
  4. Step 4: Simplify right side
    5,059.31x = 19,698,213.02
  5. Step 5: Solve for x
    x = 19,698,213.02/5,059.31
  6. Step 6: Final answer
    x = 3,893.46

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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.