Home / 3,128.59-4,317.44-1,712.31

Finding the Fourth Proportional to 3,128.59, 4,317.44 and 1,712.31

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Solution

The fourth proportional to 3,128.59, 4,317.44 and 1,712.31 is: 2,362.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.59 : 4,317.44 = 1,712.31 : x
  2. Step 2: Convert to fraction form
    3,128.59/4,317.44 = 1,712.31/x
  3. Step 3: Cross multiply
    3,128.59x = 4,317.44 × 1,712.31
  4. Step 4: Simplify right side
    3,128.59x = 7,392,770.93
  5. Step 5: Solve for x
    x = 7,392,770.93/3,128.59
  6. Step 6: Final answer
    x = 2,362.97

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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.