Home / 3,000.22-4,140.36-1,655.90

Finding the Fourth Proportional to 3,000.22, 4,140.36 and 1,655.90

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Solution

The fourth proportional to 3,000.22, 4,140.36 and 1,655.90 is: 2,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.22 : 4,140.36 = 1,655.90 : x
  2. Step 2: Convert to fraction form
    3,000.22/4,140.36 = 1,655.90/x
  3. Step 3: Cross multiply
    3,000.22x = 4,140.36 × 1,655.90
  4. Step 4: Simplify right side
    3,000.22x = 6,856,006.47
  5. Step 5: Solve for x
    x = 6,856,006.47/3,000.22
  6. Step 6: Final answer
    x = 2,285.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.