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Finding the Fourth Proportional to 3,692.51, 5,537.15 and 1,440.71

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Solution

The fourth proportional to 3,692.51, 5,537.15 and 1,440.71 is: 2,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.51 : 5,537.15 = 1,440.71 : x
  2. Step 2: Convert to fraction form
    3,692.51/5,537.15 = 1,440.71/x
  3. Step 3: Cross multiply
    3,692.51x = 5,537.15 × 1,440.71
  4. Step 4: Simplify right side
    3,692.51x = 7,977,392.49
  5. Step 5: Solve for x
    x = 7,977,392.49/3,692.51
  6. Step 6: Final answer
    x = 2,160.43

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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.