Home / 2,283.90-3,151.79-1,289.37

Finding the Fourth Proportional to 2,283.90, 3,151.79 and 1,289.37

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Solution

The fourth proportional to 2,283.90, 3,151.79 and 1,289.37 is: 1,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.90 : 3,151.79 = 1,289.37 : x
  2. Step 2: Convert to fraction form
    2,283.90/3,151.79 = 1,289.37/x
  3. Step 3: Cross multiply
    2,283.90x = 3,151.79 × 1,289.37
  4. Step 4: Simplify right side
    2,283.90x = 4,063,812.32
  5. Step 5: Solve for x
    x = 4,063,812.32/2,283.90
  6. Step 6: Final answer
    x = 1,779.33

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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.