Home / 2,816.20-4,225.20-1,782.64

Finding the Fourth Proportional to 2,816.20, 4,225.20 and 1,782.64

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Solution

The fourth proportional to 2,816.20, 4,225.20 and 1,782.64 is: 2,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.20 : 4,225.20 = 1,782.64 : x
  2. Step 2: Convert to fraction form
    2,816.20/4,225.20 = 1,782.64/x
  3. Step 3: Cross multiply
    2,816.20x = 4,225.20 × 1,782.64
  4. Step 4: Simplify right side
    2,816.20x = 7,532,010.53
  5. Step 5: Solve for x
    x = 7,532,010.53/2,816.20
  6. Step 6: Final answer
    x = 2,674.53

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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.