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Finding the Fourth Proportional to 2,692.50, 3,706.74 and 2,343.12

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Solution

The fourth proportional to 2,692.50, 3,706.74 and 2,343.12 is: 3,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.50 : 3,706.74 = 2,343.12 : x
  2. Step 2: Convert to fraction form
    2,692.50/3,706.74 = 2,343.12/x
  3. Step 3: Cross multiply
    2,692.50x = 3,706.74 × 2,343.12
  4. Step 4: Simplify right side
    2,692.50x = 8,685,336.63
  5. Step 5: Solve for x
    x = 8,685,336.63/2,692.50
  6. Step 6: Final answer
    x = 3,225.75

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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.