Home / 2,690.35-4,036.67-1,458.61

Finding the Fourth Proportional to 2,690.35, 4,036.67 and 1,458.61

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Solution

The fourth proportional to 2,690.35, 4,036.67 and 1,458.61 is: 2,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.35 : 4,036.67 = 1,458.61 : x
  2. Step 2: Convert to fraction form
    2,690.35/4,036.67 = 1,458.61/x
  3. Step 3: Cross multiply
    2,690.35x = 4,036.67 × 1,458.61
  4. Step 4: Simplify right side
    2,690.35x = 5,887,919.94
  5. Step 5: Solve for x
    x = 5,887,919.94/2,690.35
  6. Step 6: Final answer
    x = 2,188.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.