Home / 2,125.19-3,184.02-1,813.88

Finding the Fourth Proportional to 2,125.19, 3,184.02 and 1,813.88

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Solution

The fourth proportional to 2,125.19, 3,184.02 and 1,813.88 is: 2,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.19 : 3,184.02 = 1,813.88 : x
  2. Step 2: Convert to fraction form
    2,125.19/3,184.02 = 1,813.88/x
  3. Step 3: Cross multiply
    2,125.19x = 3,184.02 × 1,813.88
  4. Step 4: Simplify right side
    2,125.19x = 5,775,430.20
  5. Step 5: Solve for x
    x = 5,775,430.20/2,125.19
  6. Step 6: Final answer
    x = 2,717.61

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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.