Home / 7,977.06-11,967.41-2,431.19

Finding the Fourth Proportional to 7,977.06, 11,967.41 and 2,431.19

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Solution

The fourth proportional to 7,977.06, 11,967.41 and 2,431.19 is: 3,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.06 : 11,967.41 = 2,431.19 : x
  2. Step 2: Convert to fraction form
    7,977.06/11,967.41 = 2,431.19/x
  3. Step 3: Cross multiply
    7,977.06x = 11,967.41 × 2,431.19
  4. Step 4: Simplify right side
    7,977.06x = 29,095,047.52
  5. Step 5: Solve for x
    x = 29,095,047.52/7,977.06
  6. Step 6: Final answer
    x = 3,647.34

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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.