Home / 1,853.29-2,556.81-1,224.16

Finding the Fourth Proportional to 1,853.29, 2,556.81 and 1,224.16

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Solution

The fourth proportional to 1,853.29, 2,556.81 and 1,224.16 is: 1,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.29 : 2,556.81 = 1,224.16 : x
  2. Step 2: Convert to fraction form
    1,853.29/2,556.81 = 1,224.16/x
  3. Step 3: Cross multiply
    1,853.29x = 2,556.81 × 1,224.16
  4. Step 4: Simplify right side
    1,853.29x = 3,129,944.53
  5. Step 5: Solve for x
    x = 3,129,944.53/1,853.29
  6. Step 6: Final answer
    x = 1,688.86

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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.