Home / 2,339.42-3,228.45-1,291.55

Finding the Fourth Proportional to 2,339.42, 3,228.45 and 1,291.55

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Solution

The fourth proportional to 2,339.42, 3,228.45 and 1,291.55 is: 1,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.42 : 3,228.45 = 1,291.55 : x
  2. Step 2: Convert to fraction form
    2,339.42/3,228.45 = 1,291.55/x
  3. Step 3: Cross multiply
    2,339.42x = 3,228.45 × 1,291.55
  4. Step 4: Simplify right side
    2,339.42x = 4,169,704.60
  5. Step 5: Solve for x
    x = 4,169,704.60/2,339.42
  6. Step 6: Final answer
    x = 1,782.37

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1.5x scale

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.