Home / 5,118.54-7,063.65-2,880.42

Finding the Fourth Proportional to 5,118.54, 7,063.65 and 2,880.42

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Solution

The fourth proportional to 5,118.54, 7,063.65 and 2,880.42 is: 3,975.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.54 : 7,063.65 = 2,880.42 : x
  2. Step 2: Convert to fraction form
    5,118.54/7,063.65 = 2,880.42/x
  3. Step 3: Cross multiply
    5,118.54x = 7,063.65 × 2,880.42
  4. Step 4: Simplify right side
    5,118.54x = 20,346,278.73
  5. Step 5: Solve for x
    x = 20,346,278.73/5,118.54
  6. Step 6: Final answer
    x = 3,975.02

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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.