Home / 2,820.92-4,231.06-1,784.12

Finding the Fourth Proportional to 2,820.92, 4,231.06 and 1,784.12

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Solution

The fourth proportional to 2,820.92, 4,231.06 and 1,784.12 is: 2,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.92 : 4,231.06 = 1,784.12 : x
  2. Step 2: Convert to fraction form
    2,820.92/4,231.06 = 1,784.12/x
  3. Step 3: Cross multiply
    2,820.92x = 4,231.06 × 1,784.12
  4. Step 4: Simplify right side
    2,820.92x = 7,548,718.77
  5. Step 5: Solve for x
    x = 7,548,718.77/2,820.92
  6. Step 6: Final answer
    x = 2,675.98

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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.