Home / 5,478.16-8,218.05-2,015.14

Finding the Fourth Proportional to 5,478.16, 8,218.05 and 2,015.14

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Solution

The fourth proportional to 5,478.16, 8,218.05 and 2,015.14 is: 3,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.16 : 8,218.05 = 2,015.14 : x
  2. Step 2: Convert to fraction form
    5,478.16/8,218.05 = 2,015.14/x
  3. Step 3: Cross multiply
    5,478.16x = 8,218.05 × 2,015.14
  4. Step 4: Simplify right side
    5,478.16x = 16,560,521.28
  5. Step 5: Solve for x
    x = 16,560,521.28/5,478.16
  6. Step 6: Final answer
    x = 3,023.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.