Home / 4,781.67-7,172.52-2,810.31

Finding the Fourth Proportional to 4,781.67, 7,172.52 and 2,810.31

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Solution

The fourth proportional to 4,781.67, 7,172.52 and 2,810.31 is: 4,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.67 : 7,172.52 = 2,810.31 : x
  2. Step 2: Convert to fraction form
    4,781.67/7,172.52 = 2,810.31/x
  3. Step 3: Cross multiply
    4,781.67x = 7,172.52 × 2,810.31
  4. Step 4: Simplify right side
    4,781.67x = 20,157,004.68
  5. Step 5: Solve for x
    x = 20,157,004.68/4,781.67
  6. Step 6: Final answer
    x = 4,215.47

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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.