Home / 2,289.46-3,160.20-1,345.24

Finding the Fourth Proportional to 2,289.46, 3,160.20 and 1,345.24

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Solution

The fourth proportional to 2,289.46, 3,160.20 and 1,345.24 is: 1,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.46 : 3,160.20 = 1,345.24 : x
  2. Step 2: Convert to fraction form
    2,289.46/3,160.20 = 1,345.24/x
  3. Step 3: Cross multiply
    2,289.46x = 3,160.20 × 1,345.24
  4. Step 4: Simplify right side
    2,289.46x = 4,251,211.65
  5. Step 5: Solve for x
    x = 4,251,211.65/2,289.46
  6. Step 6: Final answer
    x = 1,856.86

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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.