Home / 5,059.20-6,981.44-2,821.32

Finding the Fourth Proportional to 5,059.20, 6,981.44 and 2,821.32

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Solution

The fourth proportional to 5,059.20, 6,981.44 and 2,821.32 is: 3,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.20 : 6,981.44 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    5,059.20/6,981.44 = 2,821.32/x
  3. Step 3: Cross multiply
    5,059.20x = 6,981.44 × 2,821.32
  4. Step 4: Simplify right side
    5,059.20x = 19,696,876.30
  5. Step 5: Solve for x
    x = 19,696,876.30/5,059.20
  6. Step 6: Final answer
    x = 3,893.28

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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.