Home / 2,070.18-3,105.21-609.36

Finding the Fourth Proportional to 2,070.18, 3,105.21 and 609.36

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Solution

The fourth proportional to 2,070.18, 3,105.21 and 609.36 is: 914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.18 : 3,105.21 = 609.36 : x
  2. Step 2: Convert to fraction form
    2,070.18/3,105.21 = 609.36/x
  3. Step 3: Cross multiply
    2,070.18x = 3,105.21 × 609.36
  4. Step 4: Simplify right side
    2,070.18x = 1,892,190.77
  5. Step 5: Solve for x
    x = 1,892,190.77/2,070.18
  6. Step 6: Final answer
    x = 914.02

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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.