Home / 2,609.70-3,913.27-1,291.93

Finding the Fourth Proportional to 2,609.70, 3,913.27 and 1,291.93

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Solution

The fourth proportional to 2,609.70, 3,913.27 and 1,291.93 is: 1,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.70 : 3,913.27 = 1,291.93 : x
  2. Step 2: Convert to fraction form
    2,609.70/3,913.27 = 1,291.93/x
  3. Step 3: Cross multiply
    2,609.70x = 3,913.27 × 1,291.93
  4. Step 4: Simplify right side
    2,609.70x = 5,055,670.91
  5. Step 5: Solve for x
    x = 5,055,670.91/2,609.70
  6. Step 6: Final answer
    x = 1,937.26

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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.