Home / 2,313.32-3,214.51-2,289.64

Finding the Fourth Proportional to 2,313.32, 3,214.51 and 2,289.64

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Solution

The fourth proportional to 2,313.32, 3,214.51 and 2,289.64 is: 3,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.32 : 3,214.51 = 2,289.64 : x
  2. Step 2: Convert to fraction form
    2,313.32/3,214.51 = 2,289.64/x
  3. Step 3: Cross multiply
    2,313.32x = 3,214.51 × 2,289.64
  4. Step 4: Simplify right side
    2,313.32x = 7,360,070.68
  5. Step 5: Solve for x
    x = 7,360,070.68/2,313.32
  6. Step 6: Final answer
    x = 3,181.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.