Home / 2,646.21-3,969.35-1,259.26

Finding the Fourth Proportional to 2,646.21, 3,969.35 and 1,259.26

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Solution

The fourth proportional to 2,646.21, 3,969.35 and 1,259.26 is: 1,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.21 : 3,969.35 = 1,259.26 : x
  2. Step 2: Convert to fraction form
    2,646.21/3,969.35 = 1,259.26/x
  3. Step 3: Cross multiply
    2,646.21x = 3,969.35 × 1,259.26
  4. Step 4: Simplify right side
    2,646.21x = 4,998,443.68
  5. Step 5: Solve for x
    x = 4,998,443.68/2,646.21
  6. Step 6: Final answer
    x = 1,888.91

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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.