Home / 5,226.31-7,839.43-1,277.58

Finding the Fourth Proportional to 5,226.31, 7,839.43 and 1,277.58

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Solution

The fourth proportional to 5,226.31, 7,839.43 and 1,277.58 is: 1,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.31 : 7,839.43 = 1,277.58 : x
  2. Step 2: Convert to fraction form
    5,226.31/7,839.43 = 1,277.58/x
  3. Step 3: Cross multiply
    5,226.31x = 7,839.43 × 1,277.58
  4. Step 4: Simplify right side
    5,226.31x = 10,015,492.59
  5. Step 5: Solve for x
    x = 10,015,492.59/5,226.31
  6. Step 6: Final answer
    x = 1,916.36

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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.