Home / 2,339.53-3,228.45-1,291.57

Finding the Fourth Proportional to 2,339.53, 3,228.45 and 1,291.57

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Solution

The fourth proportional to 2,339.53, 3,228.45 and 1,291.57 is: 1,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.53 : 3,228.45 = 1,291.57 : x
  2. Step 2: Convert to fraction form
    2,339.53/3,228.45 = 1,291.57/x
  3. Step 3: Cross multiply
    2,339.53x = 3,228.45 × 1,291.57
  4. Step 4: Simplify right side
    2,339.53x = 4,169,769.17
  5. Step 5: Solve for x
    x = 4,169,769.17/2,339.53
  6. Step 6: Final answer
    x = 1,782.31

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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.