Home / 3,129.05-4,317.63-1,784.44

Finding the Fourth Proportional to 3,129.05, 4,317.63 and 1,784.44

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Solution

The fourth proportional to 3,129.05, 4,317.63 and 1,784.44 is: 2,462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.05 : 4,317.63 = 1,784.44 : x
  2. Step 2: Convert to fraction form
    3,129.05/4,317.63 = 1,784.44/x
  3. Step 3: Cross multiply
    3,129.05x = 4,317.63 × 1,784.44
  4. Step 4: Simplify right side
    3,129.05x = 7,704,578.39
  5. Step 5: Solve for x
    x = 7,704,578.39/3,129.05
  6. Step 6: Final answer
    x = 2,462.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.