Home / 5,059.58-6,981.85-2,821.57

Finding the Fourth Proportional to 5,059.58, 6,981.85 and 2,821.57

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Solution

The fourth proportional to 5,059.58, 6,981.85 and 2,821.57 is: 3,893.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.58 : 6,981.85 = 2,821.57 : x
  2. Step 2: Convert to fraction form
    5,059.58/6,981.85 = 2,821.57/x
  3. Step 3: Cross multiply
    5,059.58x = 6,981.85 × 2,821.57
  4. Step 4: Simplify right side
    5,059.58x = 19,699,778.50
  5. Step 5: Solve for x
    x = 19,699,778.50/5,059.58
  6. Step 6: Final answer
    x = 3,893.56

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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.