Home / 1,894.11-2,842.63-1,313.18

Finding the Fourth Proportional to 1,894.11, 2,842.63 and 1,313.18

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Solution

The fourth proportional to 1,894.11, 2,842.63 and 1,313.18 is: 1,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.11 : 2,842.63 = 1,313.18 : x
  2. Step 2: Convert to fraction form
    1,894.11/2,842.63 = 1,313.18/x
  3. Step 3: Cross multiply
    1,894.11x = 2,842.63 × 1,313.18
  4. Step 4: Simplify right side
    1,894.11x = 3,732,884.86
  5. Step 5: Solve for x
    x = 3,732,884.86/1,894.11
  6. Step 6: Final answer
    x = 1,970.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.