Home / 2,313.68-3,192.50-1,318.98

Finding the Fourth Proportional to 2,313.68, 3,192.50 and 1,318.98

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Solution

The fourth proportional to 2,313.68, 3,192.50 and 1,318.98 is: 1,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.68 : 3,192.50 = 1,318.98 : x
  2. Step 2: Convert to fraction form
    2,313.68/3,192.50 = 1,318.98/x
  3. Step 3: Cross multiply
    2,313.68x = 3,192.50 × 1,318.98
  4. Step 4: Simplify right side
    2,313.68x = 4,210,827.69
  5. Step 5: Solve for x
    x = 4,210,827.69/2,313.68
  6. Step 6: Final answer
    x = 1,819.97

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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.