Home / 4,918.50-6,787.54-2,680.40

Finding the Fourth Proportional to 4,918.50, 6,787.54 and 2,680.40

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Solution

The fourth proportional to 4,918.50, 6,787.54 and 2,680.40 is: 3,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.50 : 6,787.54 = 2,680.40 : x
  2. Step 2: Convert to fraction form
    4,918.50/6,787.54 = 2,680.40/x
  3. Step 3: Cross multiply
    4,918.50x = 6,787.54 × 2,680.40
  4. Step 4: Simplify right side
    4,918.50x = 18,193,322.22
  5. Step 5: Solve for x
    x = 18,193,322.22/4,918.50
  6. Step 6: Final answer
    x = 3,698.96

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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.