Home / 1,646.06-2,271.18-982.79

Finding the Fourth Proportional to 1,646.06, 2,271.18 and 982.79

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Solution

The fourth proportional to 1,646.06, 2,271.18 and 982.79 is: 1,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.06 : 2,271.18 = 982.79 : x
  2. Step 2: Convert to fraction form
    1,646.06/2,271.18 = 982.79/x
  3. Step 3: Cross multiply
    1,646.06x = 2,271.18 × 982.79
  4. Step 4: Simplify right side
    1,646.06x = 2,232,081.64
  5. Step 5: Solve for x
    x = 2,232,081.64/1,646.06
  6. Step 6: Final answer
    x = 1,356.02

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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.