Home / 2,203.80-3,039.93-1,319.10

Finding the Fourth Proportional to 2,203.80, 3,039.93 and 1,319.10

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Solution

The fourth proportional to 2,203.80, 3,039.93 and 1,319.10 is: 1,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.80 : 3,039.93 = 1,319.10 : x
  2. Step 2: Convert to fraction form
    2,203.80/3,039.93 = 1,319.10/x
  3. Step 3: Cross multiply
    2,203.80x = 3,039.93 × 1,319.10
  4. Step 4: Simplify right side
    2,203.80x = 4,009,971.66
  5. Step 5: Solve for x
    x = 4,009,971.66/2,203.80
  6. Step 6: Final answer
    x = 1,819.57

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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.