Home / 2,309.32-3,186.75-1,314.64

Finding the Fourth Proportional to 2,309.32, 3,186.75 and 1,314.64

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Solution

The fourth proportional to 2,309.32, 3,186.75 and 1,314.64 is: 1,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.32 : 3,186.75 = 1,314.64 : x
  2. Step 2: Convert to fraction form
    2,309.32/3,186.75 = 1,314.64/x
  3. Step 3: Cross multiply
    2,309.32x = 3,186.75 × 1,314.64
  4. Step 4: Simplify right side
    2,309.32x = 4,189,429.02
  5. Step 5: Solve for x
    x = 4,189,429.02/2,309.32
  6. Step 6: Final answer
    x = 1,814.14

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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.