Home / 1,270.14-1,753.83-938.94

Finding the Fourth Proportional to 1,270.14, 1,753.83 and 938.94

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Solution

The fourth proportional to 1,270.14, 1,753.83 and 938.94 is: 1,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.14 : 1,753.83 = 938.94 : x
  2. Step 2: Convert to fraction form
    1,270.14/1,753.83 = 938.94/x
  3. Step 3: Cross multiply
    1,270.14x = 1,753.83 × 938.94
  4. Step 4: Simplify right side
    1,270.14x = 1,646,741.14
  5. Step 5: Solve for x
    x = 1,646,741.14/1,270.14
  6. Step 6: Final answer
    x = 1,296.50

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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.