Home / 4,816.90-7,220.55-2,215.30

Finding the Fourth Proportional to 4,816.90, 7,220.55 and 2,215.30

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Solution

The fourth proportional to 4,816.90, 7,220.55 and 2,215.30 is: 3,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.90 : 7,220.55 = 2,215.30 : x
  2. Step 2: Convert to fraction form
    4,816.90/7,220.55 = 2,215.30/x
  3. Step 3: Cross multiply
    4,816.90x = 7,220.55 × 2,215.30
  4. Step 4: Simplify right side
    4,816.90x = 15,995,684.42
  5. Step 5: Solve for x
    x = 15,995,684.42/4,816.90
  6. Step 6: Final answer
    x = 3,320.74

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1.5x scale

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.