Home / 1,775.42-2,664.50-1,228.40

Finding the Fourth Proportional to 1,775.42, 2,664.50 and 1,228.40

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Solution

The fourth proportional to 1,775.42, 2,664.50 and 1,228.40 is: 1,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.42 : 2,664.50 = 1,228.40 : x
  2. Step 2: Convert to fraction form
    1,775.42/2,664.50 = 1,228.40/x
  3. Step 3: Cross multiply
    1,775.42x = 2,664.50 × 1,228.40
  4. Step 4: Simplify right side
    1,775.42x = 3,273,071.80
  5. Step 5: Solve for x
    x = 3,273,071.80/1,775.42
  6. Step 6: Final answer
    x = 1,843.55

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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.