Home / 3,727.50-5,143.95-2,071.50

Finding the Fourth Proportional to 3,727.50, 5,143.95 and 2,071.50

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Solution

The fourth proportional to 3,727.50, 5,143.95 and 2,071.50 is: 2,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.50 : 5,143.95 = 2,071.50 : x
  2. Step 2: Convert to fraction form
    3,727.50/5,143.95 = 2,071.50/x
  3. Step 3: Cross multiply
    3,727.50x = 5,143.95 × 2,071.50
  4. Step 4: Simplify right side
    3,727.50x = 10,655,692.43
  5. Step 5: Solve for x
    x = 10,655,692.43/3,727.50
  6. Step 6: Final answer
    x = 2,858.67

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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.