Home / 2,289.29-3,430.31-1,739.79

Finding the Fourth Proportional to 2,289.29, 3,430.31 and 1,739.79

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Solution

The fourth proportional to 2,289.29, 3,430.31 and 1,739.79 is: 2,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.29 : 3,430.31 = 1,739.79 : x
  2. Step 2: Convert to fraction form
    2,289.29/3,430.31 = 1,739.79/x
  3. Step 3: Cross multiply
    2,289.29x = 3,430.31 × 1,739.79
  4. Step 4: Simplify right side
    2,289.29x = 5,968,010.34
  5. Step 5: Solve for x
    x = 5,968,010.34/2,289.29
  6. Step 6: Final answer
    x = 2,606.93

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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.