Home / 7,977.19-11,971.26-2,783.07

Finding the Fourth Proportional to 7,977.19, 11,971.26 and 2,783.07

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Solution

The fourth proportional to 7,977.19, 11,971.26 and 2,783.07 is: 4,176.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.19 : 11,971.26 = 2,783.07 : x
  2. Step 2: Convert to fraction form
    7,977.19/11,971.26 = 2,783.07/x
  3. Step 3: Cross multiply
    7,977.19x = 11,971.26 × 2,783.07
  4. Step 4: Simplify right side
    7,977.19x = 33,316,794.71
  5. Step 5: Solve for x
    x = 33,316,794.71/7,977.19
  6. Step 6: Final answer
    x = 4,176.51

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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.