Home / 2,678.05-3,692.26-1,732.17

Finding the Fourth Proportional to 2,678.05, 3,692.26 and 1,732.17

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Solution

The fourth proportional to 2,678.05, 3,692.26 and 1,732.17 is: 2,388.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.05 : 3,692.26 = 1,732.17 : x
  2. Step 2: Convert to fraction form
    2,678.05/3,692.26 = 1,732.17/x
  3. Step 3: Cross multiply
    2,678.05x = 3,692.26 × 1,732.17
  4. Step 4: Simplify right side
    2,678.05x = 6,395,638.02
  5. Step 5: Solve for x
    x = 6,395,638.02/2,678.05
  6. Step 6: Final answer
    x = 2,388.17

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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.