Home / 2,764.67-3,815.73-1,646.25

Finding the Fourth Proportional to 2,764.67, 3,815.73 and 1,646.25

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Solution

The fourth proportional to 2,764.67, 3,815.73 and 1,646.25 is: 2,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.67 : 3,815.73 = 1,646.25 : x
  2. Step 2: Convert to fraction form
    2,764.67/3,815.73 = 1,646.25/x
  3. Step 3: Cross multiply
    2,764.67x = 3,815.73 × 1,646.25
  4. Step 4: Simplify right side
    2,764.67x = 6,281,645.51
  5. Step 5: Solve for x
    x = 6,281,645.51/2,764.67
  6. Step 6: Final answer
    x = 2,272.12

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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.