Home / 2,309.24-3,185.69-1,512.35

Finding the Fourth Proportional to 2,309.24, 3,185.69 and 1,512.35

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Solution

The fourth proportional to 2,309.24, 3,185.69 and 1,512.35 is: 2,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.24 : 3,185.69 = 1,512.35 : x
  2. Step 2: Convert to fraction form
    2,309.24/3,185.69 = 1,512.35/x
  3. Step 3: Cross multiply
    2,309.24x = 3,185.69 × 1,512.35
  4. Step 4: Simplify right side
    2,309.24x = 4,817,866.12
  5. Step 5: Solve for x
    x = 4,817,866.12/2,309.24
  6. Step 6: Final answer
    x = 2,086.35

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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.