Home / 1,710.46-2,361.99-1,290.09

Finding the Fourth Proportional to 1,710.46, 2,361.99 and 1,290.09

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Solution

The fourth proportional to 1,710.46, 2,361.99 and 1,290.09 is: 1,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.46 : 2,361.99 = 1,290.09 : x
  2. Step 2: Convert to fraction form
    1,710.46/2,361.99 = 1,290.09/x
  3. Step 3: Cross multiply
    1,710.46x = 2,361.99 × 1,290.09
  4. Step 4: Simplify right side
    1,710.46x = 3,047,185.58
  5. Step 5: Solve for x
    x = 3,047,185.58/1,710.46
  6. Step 6: Final answer
    x = 1,781.50

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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.