Home / 3,448.23-5,172.39-851.19

Finding the Fourth Proportional to 3,448.23, 5,172.39 and 851.19

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Solution

The fourth proportional to 3,448.23, 5,172.39 and 851.19 is: 1,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.23 : 5,172.39 = 851.19 : x
  2. Step 2: Convert to fraction form
    3,448.23/5,172.39 = 851.19/x
  3. Step 3: Cross multiply
    3,448.23x = 5,172.39 × 851.19
  4. Step 4: Simplify right side
    3,448.23x = 4,402,686.64
  5. Step 5: Solve for x
    x = 4,402,686.64/3,448.23
  6. Step 6: Final answer
    x = 1,276.80

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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.