Home / 4,914.37-7,371.51-1,991.98

Finding the Fourth Proportional to 4,914.37, 7,371.51 and 1,991.98

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Solution

The fourth proportional to 4,914.37, 7,371.51 and 1,991.98 is: 2,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.37 : 7,371.51 = 1,991.98 : x
  2. Step 2: Convert to fraction form
    4,914.37/7,371.51 = 1,991.98/x
  3. Step 3: Cross multiply
    4,914.37x = 7,371.51 × 1,991.98
  4. Step 4: Simplify right side
    4,914.37x = 14,683,900.49
  5. Step 5: Solve for x
    x = 14,683,900.49/4,914.37
  6. Step 6: Final answer
    x = 2,987.95

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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.