Home / 2,643.36-3,962.40-1,766.60

Finding the Fourth Proportional to 2,643.36, 3,962.40 and 1,766.60

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Solution

The fourth proportional to 2,643.36, 3,962.40 and 1,766.60 is: 2,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.36 : 3,962.40 = 1,766.60 : x
  2. Step 2: Convert to fraction form
    2,643.36/3,962.40 = 1,766.60/x
  3. Step 3: Cross multiply
    2,643.36x = 3,962.40 × 1,766.60
  4. Step 4: Simplify right side
    2,643.36x = 6,999,975.84
  5. Step 5: Solve for x
    x = 6,999,975.84/2,643.36
  6. Step 6: Final answer
    x = 2,648.14

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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.