Home / 1,231.01-1,845.53-614.39

Finding the Fourth Proportional to 1,231.01, 1,845.53 and 614.39

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Solution

The fourth proportional to 1,231.01, 1,845.53 and 614.39 is: 921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.01 : 1,845.53 = 614.39 : x
  2. Step 2: Convert to fraction form
    1,231.01/1,845.53 = 614.39/x
  3. Step 3: Cross multiply
    1,231.01x = 1,845.53 × 614.39
  4. Step 4: Simplify right side
    1,231.01x = 1,133,884.21
  5. Step 5: Solve for x
    x = 1,133,884.21/1,231.01
  6. Step 6: Final answer
    x = 921.10

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Double scale
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1.5x scale

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.