Home / 1,283.21-1,926.41-1,277.29

Finding the Fourth Proportional to 1,283.21, 1,926.41 and 1,277.29

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Solution

The fourth proportional to 1,283.21, 1,926.41 and 1,277.29 is: 1,917.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.21 : 1,926.41 = 1,277.29 : x
  2. Step 2: Convert to fraction form
    1,283.21/1,926.41 = 1,277.29/x
  3. Step 3: Cross multiply
    1,283.21x = 1,926.41 × 1,277.29
  4. Step 4: Simplify right side
    1,283.21x = 2,460,568.21
  5. Step 5: Solve for x
    x = 2,460,568.21/1,283.21
  6. Step 6: Final answer
    x = 1,917.51

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1.5x scale

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.