Home / 7,328.58-10,986.23-2,647.48

Finding the Fourth Proportional to 7,328.58, 10,986.23 and 2,647.48

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Solution

The fourth proportional to 7,328.58, 10,986.23 and 2,647.48 is: 3,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.58 : 10,986.23 = 2,647.48 : x
  2. Step 2: Convert to fraction form
    7,328.58/10,986.23 = 2,647.48/x
  3. Step 3: Cross multiply
    7,328.58x = 10,986.23 × 2,647.48
  4. Step 4: Simplify right side
    7,328.58x = 29,085,824.20
  5. Step 5: Solve for x
    x = 29,085,824.20/7,328.58
  6. Step 6: Final answer
    x = 3,968.82

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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.