Home / 2,816.05-4,225.26-1,720.45

Finding the Fourth Proportional to 2,816.05, 4,225.26 and 1,720.45

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Solution

The fourth proportional to 2,816.05, 4,225.26 and 1,720.45 is: 2,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.05 : 4,225.26 = 1,720.45 : x
  2. Step 2: Convert to fraction form
    2,816.05/4,225.26 = 1,720.45/x
  3. Step 3: Cross multiply
    2,816.05x = 4,225.26 × 1,720.45
  4. Step 4: Simplify right side
    2,816.05x = 7,269,348.57
  5. Step 5: Solve for x
    x = 7,269,348.57/2,816.05
  6. Step 6: Final answer
    x = 2,581.40

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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.