Home / 4,880.31-6,734.79-2,784.39

Finding the Fourth Proportional to 4,880.31, 6,734.79 and 2,784.39

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Solution

The fourth proportional to 4,880.31, 6,734.79 and 2,784.39 is: 3,842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.31 : 6,734.79 = 2,784.39 : x
  2. Step 2: Convert to fraction form
    4,880.31/6,734.79 = 2,784.39/x
  3. Step 3: Cross multiply
    4,880.31x = 6,734.79 × 2,784.39
  4. Step 4: Simplify right side
    4,880.31x = 18,752,281.93
  5. Step 5: Solve for x
    x = 18,752,281.93/4,880.31
  6. Step 6: Final answer
    x = 3,842.44

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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.