Home / 2,192.40-3,291.20-1,730.50

Finding the Fourth Proportional to 2,192.40, 3,291.20 and 1,730.50

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Solution

The fourth proportional to 2,192.40, 3,291.20 and 1,730.50 is: 2,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.40 : 3,291.20 = 1,730.50 : x
  2. Step 2: Convert to fraction form
    2,192.40/3,291.20 = 1,730.50/x
  3. Step 3: Cross multiply
    2,192.40x = 3,291.20 × 1,730.50
  4. Step 4: Simplify right side
    2,192.40x = 5,695,421.60
  5. Step 5: Solve for x
    x = 5,695,421.60/2,192.40
  6. Step 6: Final answer
    x = 2,597.80

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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.