Home / 4,720.42-7,077.87-2,768.50

Finding the Fourth Proportional to 4,720.42, 7,077.87 and 2,768.50

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Solution

The fourth proportional to 4,720.42, 7,077.87 and 2,768.50 is: 4,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.42 : 7,077.87 = 2,768.50 : x
  2. Step 2: Convert to fraction form
    4,720.42/7,077.87 = 2,768.50/x
  3. Step 3: Cross multiply
    4,720.42x = 7,077.87 × 2,768.50
  4. Step 4: Simplify right side
    4,720.42x = 19,595,083.10
  5. Step 5: Solve for x
    x = 19,595,083.10/4,720.42
  6. Step 6: Final answer
    x = 4,151.13

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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.