Home / 3,486.39-4,812.53-2,309.06

Finding the Fourth Proportional to 3,486.39, 4,812.53 and 2,309.06

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Solution

The fourth proportional to 3,486.39, 4,812.53 and 2,309.06 is: 3,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.39 : 4,812.53 = 2,309.06 : x
  2. Step 2: Convert to fraction form
    3,486.39/4,812.53 = 2,309.06/x
  3. Step 3: Cross multiply
    3,486.39x = 4,812.53 × 2,309.06
  4. Step 4: Simplify right side
    3,486.39x = 11,112,420.52
  5. Step 5: Solve for x
    x = 11,112,420.52/3,486.39
  6. Step 6: Final answer
    x = 3,187.37

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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.