Home / 1,954.08-2,931.80-1,222.79

Finding the Fourth Proportional to 1,954.08, 2,931.80 and 1,222.79

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Solution

The fourth proportional to 1,954.08, 2,931.80 and 1,222.79 is: 1,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.08 : 2,931.80 = 1,222.79 : x
  2. Step 2: Convert to fraction form
    1,954.08/2,931.80 = 1,222.79/x
  3. Step 3: Cross multiply
    1,954.08x = 2,931.80 × 1,222.79
  4. Step 4: Simplify right side
    1,954.08x = 3,584,954.95
  5. Step 5: Solve for x
    x = 3,584,954.95/1,954.08
  6. Step 6: Final answer
    x = 1,834.60

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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.