Home / 7,089.21-10,635.48-3,191.49

Finding the Fourth Proportional to 7,089.21, 10,635.48 and 3,191.49

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Solution

The fourth proportional to 7,089.21, 10,635.48 and 3,191.49 is: 4,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.21 : 10,635.48 = 3,191.49 : x
  2. Step 2: Convert to fraction form
    7,089.21/10,635.48 = 3,191.49/x
  3. Step 3: Cross multiply
    7,089.21x = 10,635.48 × 3,191.49
  4. Step 4: Simplify right side
    7,089.21x = 33,943,028.07
  5. Step 5: Solve for x
    x = 33,943,028.07/7,089.21
  6. Step 6: Final answer
    x = 4,787.98

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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.