Home / 2,690.70-4,036.06-1,766.04

Finding the Fourth Proportional to 2,690.70, 4,036.06 and 1,766.04

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Solution

The fourth proportional to 2,690.70, 4,036.06 and 1,766.04 is: 2,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.70 : 4,036.06 = 1,766.04 : x
  2. Step 2: Convert to fraction form
    2,690.70/4,036.06 = 1,766.04/x
  3. Step 3: Cross multiply
    2,690.70x = 4,036.06 × 1,766.04
  4. Step 4: Simplify right side
    2,690.70x = 7,127,843.40
  5. Step 5: Solve for x
    x = 7,127,843.40/2,690.70
  6. Step 6: Final answer
    x = 2,649.07

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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.