Home / 4,137.51-5,712-3,191.25

Finding the Fourth Proportional to 4,137.51, 5,712 and 3,191.25

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Solution

The fourth proportional to 4,137.51, 5,712 and 3,191.25 is: 4,405.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,137.51 : 5,712 = 3,191.25 : x
  2. Step 2: Convert to fraction form
    4,137.51/5,712 = 3,191.25/x
  3. Step 3: Cross multiply
    4,137.51x = 5,712 × 3,191.25
  4. Step 4: Simplify right side
    4,137.51x = 18,228,420
  5. Step 5: Solve for x
    x = 18,228,420/4,137.51
  6. Step 6: Final answer
    x = 4,405.65

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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.