Home / 1,942.71-2,677.81-1,313.04

Finding the Fourth Proportional to 1,942.71, 2,677.81 and 1,313.04

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Solution

The fourth proportional to 1,942.71, 2,677.81 and 1,313.04 is: 1,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.71 : 2,677.81 = 1,313.04 : x
  2. Step 2: Convert to fraction form
    1,942.71/2,677.81 = 1,313.04/x
  3. Step 3: Cross multiply
    1,942.71x = 2,677.81 × 1,313.04
  4. Step 4: Simplify right side
    1,942.71x = 3,516,071.64
  5. Step 5: Solve for x
    x = 3,516,071.64/1,942.71
  6. Step 6: Final answer
    x = 1,809.88

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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.