Home / 3,051.24-4,210.50-1,809

Finding the Fourth Proportional to 3,051.24, 4,210.50 and 1,809

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Solution

The fourth proportional to 3,051.24, 4,210.50 and 1,809 is: 2,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.24 : 4,210.50 = 1,809 : x
  2. Step 2: Convert to fraction form
    3,051.24/4,210.50 = 1,809/x
  3. Step 3: Cross multiply
    3,051.24x = 4,210.50 × 1,809
  4. Step 4: Simplify right side
    3,051.24x = 7,616,794.50
  5. Step 5: Solve for x
    x = 7,616,794.50/3,051.24
  6. Step 6: Final answer
    x = 2,496.29

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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.