Home / 3,823.83-5,277.29-2,145.69

Finding the Fourth Proportional to 3,823.83, 5,277.29 and 2,145.69

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Solution

The fourth proportional to 3,823.83, 5,277.29 and 2,145.69 is: 2,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.83 : 5,277.29 = 2,145.69 : x
  2. Step 2: Convert to fraction form
    3,823.83/5,277.29 = 2,145.69/x
  3. Step 3: Cross multiply
    3,823.83x = 5,277.29 × 2,145.69
  4. Step 4: Simplify right side
    3,823.83x = 11,323,417.65
  5. Step 5: Solve for x
    x = 11,323,417.65/3,823.83
  6. Step 6: Final answer
    x = 2,961.28

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1.5x scale

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.