Home / 3,985.43-5,501.05-2,659.13

Finding the Fourth Proportional to 3,985.43, 5,501.05 and 2,659.13

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Solution

The fourth proportional to 3,985.43, 5,501.05 and 2,659.13 is: 3,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.43 : 5,501.05 = 2,659.13 : x
  2. Step 2: Convert to fraction form
    3,985.43/5,501.05 = 2,659.13/x
  3. Step 3: Cross multiply
    3,985.43x = 5,501.05 × 2,659.13
  4. Step 4: Simplify right side
    3,985.43x = 14,628,007.09
  5. Step 5: Solve for x
    x = 14,628,007.09/3,985.43
  6. Step 6: Final answer
    x = 3,670.37

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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.