Home / 2,835.16-3,913.62-1,890.61

Finding the Fourth Proportional to 2,835.16, 3,913.62 and 1,890.61

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Solution

The fourth proportional to 2,835.16, 3,913.62 and 1,890.61 is: 2,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.16 : 3,913.62 = 1,890.61 : x
  2. Step 2: Convert to fraction form
    2,835.16/3,913.62 = 1,890.61/x
  3. Step 3: Cross multiply
    2,835.16x = 3,913.62 × 1,890.61
  4. Step 4: Simplify right side
    2,835.16x = 7,399,119.66
  5. Step 5: Solve for x
    x = 7,399,119.66/2,835.16
  6. Step 6: Final answer
    x = 2,609.77

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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.