Home / 1,739.40-2,609.28-1,615.56

Finding the Fourth Proportional to 1,739.40, 2,609.28 and 1,615.56

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Solution

The fourth proportional to 1,739.40, 2,609.28 and 1,615.56 is: 2,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.40 : 2,609.28 = 1,615.56 : x
  2. Step 2: Convert to fraction form
    1,739.40/2,609.28 = 1,615.56/x
  3. Step 3: Cross multiply
    1,739.40x = 2,609.28 × 1,615.56
  4. Step 4: Simplify right side
    1,739.40x = 4,215,448.40
  5. Step 5: Solve for x
    x = 4,215,448.40/1,739.40
  6. Step 6: Final answer
    x = 2,423.51

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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.