Home / 1,620.23-2,234.45-1,029.74

Finding the Fourth Proportional to 1,620.23, 2,234.45 and 1,029.74

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Solution

The fourth proportional to 1,620.23, 2,234.45 and 1,029.74 is: 1,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.23 : 2,234.45 = 1,029.74 : x
  2. Step 2: Convert to fraction form
    1,620.23/2,234.45 = 1,029.74/x
  3. Step 3: Cross multiply
    1,620.23x = 2,234.45 × 1,029.74
  4. Step 4: Simplify right side
    1,620.23x = 2,300,893.95
  5. Step 5: Solve for x
    x = 2,300,893.95/1,620.23
  6. Step 6: Final answer
    x = 1,420.11

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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.