Home / 1,686.44-2,528.81-1,266.12

Finding the Fourth Proportional to 1,686.44, 2,528.81 and 1,266.12

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Solution

The fourth proportional to 1,686.44, 2,528.81 and 1,266.12 is: 1,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.44 : 2,528.81 = 1,266.12 : x
  2. Step 2: Convert to fraction form
    1,686.44/2,528.81 = 1,266.12/x
  3. Step 3: Cross multiply
    1,686.44x = 2,528.81 × 1,266.12
  4. Step 4: Simplify right side
    1,686.44x = 3,201,770.59
  5. Step 5: Solve for x
    x = 3,201,770.59/1,686.44
  6. Step 6: Final answer
    x = 1,898.54

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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.