Home / 4,918.86-6,787.85-2,680.69

Finding the Fourth Proportional to 4,918.86, 6,787.85 and 2,680.69

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Solution

The fourth proportional to 4,918.86, 6,787.85 and 2,680.69 is: 3,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.86 : 6,787.85 = 2,680.69 : x
  2. Step 2: Convert to fraction form
    4,918.86/6,787.85 = 2,680.69/x
  3. Step 3: Cross multiply
    4,918.86x = 6,787.85 × 2,680.69
  4. Step 4: Simplify right side
    4,918.86x = 18,196,080.98
  5. Step 5: Solve for x
    x = 18,196,080.98/4,918.86
  6. Step 6: Final answer
    x = 3,699.25

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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.