Home / 2,192.70-3,291.63-1,730.80

Finding the Fourth Proportional to 2,192.70, 3,291.63 and 1,730.80

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Solution

The fourth proportional to 2,192.70, 3,291.63 and 1,730.80 is: 2,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.70 : 3,291.63 = 1,730.80 : x
  2. Step 2: Convert to fraction form
    2,192.70/3,291.63 = 1,730.80/x
  3. Step 3: Cross multiply
    2,192.70x = 3,291.63 × 1,730.80
  4. Step 4: Simplify right side
    2,192.70x = 5,697,136.75
  5. Step 5: Solve for x
    x = 5,697,136.75/2,192.70
  6. Step 6: Final answer
    x = 2,598.23

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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.