Home / 5,059.08-6,981.78-2,821.14

Finding the Fourth Proportional to 5,059.08, 6,981.78 and 2,821.14

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Solution

The fourth proportional to 5,059.08, 6,981.78 and 2,821.14 is: 3,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.08 : 6,981.78 = 2,821.14 : x
  2. Step 2: Convert to fraction form
    5,059.08/6,981.78 = 2,821.14/x
  3. Step 3: Cross multiply
    5,059.08x = 6,981.78 × 2,821.14
  4. Step 4: Simplify right side
    5,059.08x = 19,696,578.83
  5. Step 5: Solve for x
    x = 19,696,578.83/5,059.08
  6. Step 6: Final answer
    x = 3,893.31

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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.