Home / 4,918.80-6,787.75-2,680.63

Finding the Fourth Proportional to 4,918.80, 6,787.75 and 2,680.63

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Solution

The fourth proportional to 4,918.80, 6,787.75 and 2,680.63 is: 3,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.80 : 6,787.75 = 2,680.63 : x
  2. Step 2: Convert to fraction form
    4,918.80/6,787.75 = 2,680.63/x
  3. Step 3: Cross multiply
    4,918.80x = 6,787.75 × 2,680.63
  4. Step 4: Simplify right side
    4,918.80x = 18,195,416.33
  5. Step 5: Solve for x
    x = 18,195,416.33/4,918.80
  6. Step 6: Final answer
    x = 3,699.16

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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.