Home / 1,611.87-2,224.50-982.34

Finding the Fourth Proportional to 1,611.87, 2,224.50 and 982.34

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Solution

The fourth proportional to 1,611.87, 2,224.50 and 982.34 is: 1,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.87 : 2,224.50 = 982.34 : x
  2. Step 2: Convert to fraction form
    1,611.87/2,224.50 = 982.34/x
  3. Step 3: Cross multiply
    1,611.87x = 2,224.50 × 982.34
  4. Step 4: Simplify right side
    1,611.87x = 2,185,208.87
  5. Step 5: Solve for x
    x = 2,185,208.87/1,611.87
  6. Step 6: Final answer
    x = 1,355.70

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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.