Home / 1,611.08-2,223.06-929.60

Finding the Fourth Proportional to 1,611.08, 2,223.06 and 929.60

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Solution

The fourth proportional to 1,611.08, 2,223.06 and 929.60 is: 1,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.08 : 2,223.06 = 929.60 : x
  2. Step 2: Convert to fraction form
    1,611.08/2,223.06 = 929.60/x
  3. Step 3: Cross multiply
    1,611.08x = 2,223.06 × 929.60
  4. Step 4: Simplify right side
    1,611.08x = 2,066,556.58
  5. Step 5: Solve for x
    x = 2,066,556.58/1,611.08
  6. Step 6: Final answer
    x = 1,282.72

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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.