Home / 1,336.49-1,842.43-1,038.14

Finding the Fourth Proportional to 1,336.49, 1,842.43 and 1,038.14

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Solution

The fourth proportional to 1,336.49, 1,842.43 and 1,038.14 is: 1,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.49 : 1,842.43 = 1,038.14 : x
  2. Step 2: Convert to fraction form
    1,336.49/1,842.43 = 1,038.14/x
  3. Step 3: Cross multiply
    1,336.49x = 1,842.43 × 1,038.14
  4. Step 4: Simplify right side
    1,336.49x = 1,912,700.28
  5. Step 5: Solve for x
    x = 1,912,700.28/1,336.49
  6. Step 6: Final answer
    x = 1,431.14

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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.