Home / 2,145.12-3,224.16-1,885.92

Finding the Fourth Proportional to 2,145.12, 3,224.16 and 1,885.92

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Solution

The fourth proportional to 2,145.12, 3,224.16 and 1,885.92 is: 2,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.12 : 3,224.16 = 1,885.92 : x
  2. Step 2: Convert to fraction form
    2,145.12/3,224.16 = 1,885.92/x
  3. Step 3: Cross multiply
    2,145.12x = 3,224.16 × 1,885.92
  4. Step 4: Simplify right side
    2,145.12x = 6,080,507.83
  5. Step 5: Solve for x
    x = 6,080,507.83/2,145.12
  6. Step 6: Final answer
    x = 2,834.58

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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.