Home / 4,720.33-7,077.38-2,640.56

Finding the Fourth Proportional to 4,720.33, 7,077.38 and 2,640.56

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Solution

The fourth proportional to 4,720.33, 7,077.38 and 2,640.56 is: 3,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.33 : 7,077.38 = 2,640.56 : x
  2. Step 2: Convert to fraction form
    4,720.33/7,077.38 = 2,640.56/x
  3. Step 3: Cross multiply
    4,720.33x = 7,077.38 × 2,640.56
  4. Step 4: Simplify right side
    4,720.33x = 18,688,197.94
  5. Step 5: Solve for x
    x = 18,688,197.94/4,720.33
  6. Step 6: Final answer
    x = 3,959.09

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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.