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Finding the Fourth Proportional to 4,569.84, 6,879.69 and 3,118.32

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Solution

The fourth proportional to 4,569.84, 6,879.69 and 3,118.32 is: 4,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,569.84 : 6,879.69 = 3,118.32 : x
  2. Step 2: Convert to fraction form
    4,569.84/6,879.69 = 3,118.32/x
  3. Step 3: Cross multiply
    4,569.84x = 6,879.69 × 3,118.32
  4. Step 4: Simplify right side
    4,569.84x = 21,453,074.92
  5. Step 5: Solve for x
    x = 21,453,074.92/4,569.84
  6. Step 6: Final answer
    x = 4,694.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.