Home / 1,216.04-1,822.80-668.03

Finding the Fourth Proportional to 1,216.04, 1,822.80 and 668.03

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Solution

The fourth proportional to 1,216.04, 1,822.80 and 668.03 is: 1,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.04 : 1,822.80 = 668.03 : x
  2. Step 2: Convert to fraction form
    1,216.04/1,822.80 = 668.03/x
  3. Step 3: Cross multiply
    1,216.04x = 1,822.80 × 668.03
  4. Step 4: Simplify right side
    1,216.04x = 1,217,685.08
  5. Step 5: Solve for x
    x = 1,217,685.08/1,216.04
  6. Step 6: Final answer
    x = 1,001.35

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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.