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Finding the Fourth Proportional to 4,692.29, 7,035.83 and 1,920.91

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Solution

The fourth proportional to 4,692.29, 7,035.83 and 1,920.91 is: 2,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.29 : 7,035.83 = 1,920.91 : x
  2. Step 2: Convert to fraction form
    4,692.29/7,035.83 = 1,920.91/x
  3. Step 3: Cross multiply
    4,692.29x = 7,035.83 × 1,920.91
  4. Step 4: Simplify right side
    4,692.29x = 13,515,196.21
  5. Step 5: Solve for x
    x = 13,515,196.21/4,692.29
  6. Step 6: Final answer
    x = 2,880.30

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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.