Home / 2,142.79-3,203.68-1,817.37

Finding the Fourth Proportional to 2,142.79, 3,203.68 and 1,817.37

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Solution

The fourth proportional to 2,142.79, 3,203.68 and 1,817.37 is: 2,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.79 : 3,203.68 = 1,817.37 : x
  2. Step 2: Convert to fraction form
    2,142.79/3,203.68 = 1,817.37/x
  3. Step 3: Cross multiply
    2,142.79x = 3,203.68 × 1,817.37
  4. Step 4: Simplify right side
    2,142.79x = 5,822,271.92
  5. Step 5: Solve for x
    x = 5,822,271.92/2,142.79
  6. Step 6: Final answer
    x = 2,717.15

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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.