Home / 2,339.55-3,228.35-1,291.55

Finding the Fourth Proportional to 2,339.55, 3,228.35 and 1,291.55

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Solution

The fourth proportional to 2,339.55, 3,228.35 and 1,291.55 is: 1,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.55 : 3,228.35 = 1,291.55 : x
  2. Step 2: Convert to fraction form
    2,339.55/3,228.35 = 1,291.55/x
  3. Step 3: Cross multiply
    2,339.55x = 3,228.35 × 1,291.55
  4. Step 4: Simplify right side
    2,339.55x = 4,169,552.84
  5. Step 5: Solve for x
    x = 4,169,552.84/2,339.55
  6. Step 6: Final answer
    x = 1,782.20

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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.