Home / 1,646.44-2,271.06-982.86

Finding the Fourth Proportional to 1,646.44, 2,271.06 and 982.86

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Solution

The fourth proportional to 1,646.44, 2,271.06 and 982.86 is: 1,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.44 : 2,271.06 = 982.86 : x
  2. Step 2: Convert to fraction form
    1,646.44/2,271.06 = 982.86/x
  3. Step 3: Cross multiply
    1,646.44x = 2,271.06 × 982.86
  4. Step 4: Simplify right side
    1,646.44x = 2,232,134.03
  5. Step 5: Solve for x
    x = 2,232,134.03/1,646.44
  6. Step 6: Final answer
    x = 1,355.73

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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.