Home / 1,331.96-1,837.46-1,035.20

Finding the Fourth Proportional to 1,331.96, 1,837.46 and 1,035.20

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Solution

The fourth proportional to 1,331.96, 1,837.46 and 1,035.20 is: 1,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.96 : 1,837.46 = 1,035.20 : x
  2. Step 2: Convert to fraction form
    1,331.96/1,837.46 = 1,035.20/x
  3. Step 3: Cross multiply
    1,331.96x = 1,837.46 × 1,035.20
  4. Step 4: Simplify right side
    1,331.96x = 1,902,129.40
  5. Step 5: Solve for x
    x = 1,902,129.40/1,331.96
  6. Step 6: Final answer
    x = 1,428.07

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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.