Home / 4,968.40-7,436.40-3,985.60

Finding the Fourth Proportional to 4,968.40, 7,436.40 and 3,985.60

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Solution

The fourth proportional to 4,968.40, 7,436.40 and 3,985.60 is: 5,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,968.40 : 7,436.40 = 3,985.60 : x
  2. Step 2: Convert to fraction form
    4,968.40/7,436.40 = 3,985.60/x
  3. Step 3: Cross multiply
    4,968.40x = 7,436.40 × 3,985.60
  4. Step 4: Simplify right side
    4,968.40x = 29,638,515.84
  5. Step 5: Solve for x
    x = 29,638,515.84/4,968.40
  6. Step 6: Final answer
    x = 5,965.40

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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.