Home / 2,339.92-3,228.90-1,345.12

Finding the Fourth Proportional to 2,339.92, 3,228.90 and 1,345.12

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Solution

The fourth proportional to 2,339.92, 3,228.90 and 1,345.12 is: 1,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.92 : 3,228.90 = 1,345.12 : x
  2. Step 2: Convert to fraction form
    2,339.92/3,228.90 = 1,345.12/x
  3. Step 3: Cross multiply
    2,339.92x = 3,228.90 × 1,345.12
  4. Step 4: Simplify right side
    2,339.92x = 4,343,257.97
  5. Step 5: Solve for x
    x = 4,343,257.97/2,339.92
  6. Step 6: Final answer
    x = 1,856.16

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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.