Home / 1,216.98-1,817.06-1,102.23

Finding the Fourth Proportional to 1,216.98, 1,817.06 and 1,102.23

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Solution

The fourth proportional to 1,216.98, 1,817.06 and 1,102.23 is: 1,645.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.98 : 1,817.06 = 1,102.23 : x
  2. Step 2: Convert to fraction form
    1,216.98/1,817.06 = 1,102.23/x
  3. Step 3: Cross multiply
    1,216.98x = 1,817.06 × 1,102.23
  4. Step 4: Simplify right side
    1,216.98x = 2,002,812.53
  5. Step 5: Solve for x
    x = 2,002,812.53/1,216.98
  6. Step 6: Final answer
    x = 1,645.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.