Home / 1,685.56-2,328.10-1,297.24

Finding the Fourth Proportional to 1,685.56, 2,328.10 and 1,297.24

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Solution

The fourth proportional to 1,685.56, 2,328.10 and 1,297.24 is: 1,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.56 : 2,328.10 = 1,297.24 : x
  2. Step 2: Convert to fraction form
    1,685.56/2,328.10 = 1,297.24/x
  3. Step 3: Cross multiply
    1,685.56x = 2,328.10 × 1,297.24
  4. Step 4: Simplify right side
    1,685.56x = 3,020,104.44
  5. Step 5: Solve for x
    x = 3,020,104.44/1,685.56
  6. Step 6: Final answer
    x = 1,791.75

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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.