Home / 2,231.28-3,346.96-692.32

Finding the Fourth Proportional to 2,231.28, 3,346.96 and 692.32

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Solution

The fourth proportional to 2,231.28, 3,346.96 and 692.32 is: 1,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.28 : 3,346.96 = 692.32 : x
  2. Step 2: Convert to fraction form
    2,231.28/3,346.96 = 692.32/x
  3. Step 3: Cross multiply
    2,231.28x = 3,346.96 × 692.32
  4. Step 4: Simplify right side
    2,231.28x = 2,317,167.35
  5. Step 5: Solve for x
    x = 2,317,167.35/2,231.28
  6. Step 6: Final answer
    x = 1,038.49

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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.