Home / 5,118.47-7,063.20-2,880.44

Finding the Fourth Proportional to 5,118.47, 7,063.20 and 2,880.44

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Solution

The fourth proportional to 5,118.47, 7,063.20 and 2,880.44 is: 3,974.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.47 : 7,063.20 = 2,880.44 : x
  2. Step 2: Convert to fraction form
    5,118.47/7,063.20 = 2,880.44/x
  3. Step 3: Cross multiply
    5,118.47x = 7,063.20 × 2,880.44
  4. Step 4: Simplify right side
    5,118.47x = 20,345,123.81
  5. Step 5: Solve for x
    x = 20,345,123.81/5,118.47
  6. Step 6: Final answer
    x = 3,974.84

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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.