Home / 3,705.02-5,112.36-2,132.81

Finding the Fourth Proportional to 3,705.02, 5,112.36 and 2,132.81

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Solution

The fourth proportional to 3,705.02, 5,112.36 and 2,132.81 is: 2,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.02 : 5,112.36 = 2,132.81 : x
  2. Step 2: Convert to fraction form
    3,705.02/5,112.36 = 2,132.81/x
  3. Step 3: Cross multiply
    3,705.02x = 5,112.36 × 2,132.81
  4. Step 4: Simplify right side
    3,705.02x = 10,903,692.53
  5. Step 5: Solve for x
    x = 10,903,692.53/3,705.02
  6. Step 6: Final answer
    x = 2,942.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.