Home / 6,461.80-9,692.75-3,538.51

Finding the Fourth Proportional to 6,461.80, 9,692.75 and 3,538.51

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Solution

The fourth proportional to 6,461.80, 9,692.75 and 3,538.51 is: 5,307.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.80 : 9,692.75 = 3,538.51 : x
  2. Step 2: Convert to fraction form
    6,461.80/9,692.75 = 3,538.51/x
  3. Step 3: Cross multiply
    6,461.80x = 9,692.75 × 3,538.51
  4. Step 4: Simplify right side
    6,461.80x = 34,297,899.70
  5. Step 5: Solve for x
    x = 34,297,899.70/6,461.80
  6. Step 6: Final answer
    x = 5,307.79

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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.