Home / 2,455.07-3,682.09-811.24

Finding the Fourth Proportional to 2,455.07, 3,682.09 and 811.24

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Solution

The fourth proportional to 2,455.07, 3,682.09 and 811.24 is: 1,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.07 : 3,682.09 = 811.24 : x
  2. Step 2: Convert to fraction form
    2,455.07/3,682.09 = 811.24/x
  3. Step 3: Cross multiply
    2,455.07x = 3,682.09 × 811.24
  4. Step 4: Simplify right side
    2,455.07x = 2,987,058.69
  5. Step 5: Solve for x
    x = 2,987,058.69/2,455.07
  6. Step 6: Final answer
    x = 1,216.69

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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.