Home / 2,313.28-3,192.57-1,318.75

Finding the Fourth Proportional to 2,313.28, 3,192.57 and 1,318.75

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Solution

The fourth proportional to 2,313.28, 3,192.57 and 1,318.75 is: 1,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.28 : 3,192.57 = 1,318.75 : x
  2. Step 2: Convert to fraction form
    2,313.28/3,192.57 = 1,318.75/x
  3. Step 3: Cross multiply
    2,313.28x = 3,192.57 × 1,318.75
  4. Step 4: Simplify right side
    2,313.28x = 4,210,201.69
  5. Step 5: Solve for x
    x = 4,210,201.69/2,313.28
  6. Step 6: Final answer
    x = 1,820.01

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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.