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Finding the Fourth Proportional to 6,692.50, 9,235.89 and 4,039.39

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Solution

The fourth proportional to 6,692.50, 9,235.89 and 4,039.39 is: 5,574.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,692.50 : 9,235.89 = 4,039.39 : x
  2. Step 2: Convert to fraction form
    6,692.50/9,235.89 = 4,039.39/x
  3. Step 3: Cross multiply
    6,692.50x = 9,235.89 × 4,039.39
  4. Step 4: Simplify right side
    6,692.50x = 37,307,373.25
  5. Step 5: Solve for x
    x = 37,307,373.25/6,692.50
  6. Step 6: Final answer
    x = 5,574.50

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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.