Home / 3,853.10-5,782.35-1,663.40

Finding the Fourth Proportional to 3,853.10, 5,782.35 and 1,663.40

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Solution

The fourth proportional to 3,853.10, 5,782.35 and 1,663.40 is: 2,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.10 : 5,782.35 = 1,663.40 : x
  2. Step 2: Convert to fraction form
    3,853.10/5,782.35 = 1,663.40/x
  3. Step 3: Cross multiply
    3,853.10x = 5,782.35 × 1,663.40
  4. Step 4: Simplify right side
    3,853.10x = 9,618,360.99
  5. Step 5: Solve for x
    x = 9,618,360.99/3,853.10
  6. Step 6: Final answer
    x = 2,496.27

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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.