Home / 4,720.70-7,078.01-2,255.46

Finding the Fourth Proportional to 4,720.70, 7,078.01 and 2,255.46

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Solution

The fourth proportional to 4,720.70, 7,078.01 and 2,255.46 is: 3,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.70 : 7,078.01 = 2,255.46 : x
  2. Step 2: Convert to fraction form
    4,720.70/7,078.01 = 2,255.46/x
  3. Step 3: Cross multiply
    4,720.70x = 7,078.01 × 2,255.46
  4. Step 4: Simplify right side
    4,720.70x = 15,964,157.16
  5. Step 5: Solve for x
    x = 15,964,157.16/4,720.70
  6. Step 6: Final answer
    x = 3,381.74

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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.