Home / 7,810.51-11,717.81-2,880.19

Finding the Fourth Proportional to 7,810.51, 11,717.81 and 2,880.19

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Solution

The fourth proportional to 7,810.51, 11,717.81 and 2,880.19 is: 4,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.51 : 11,717.81 = 2,880.19 : x
  2. Step 2: Convert to fraction form
    7,810.51/11,717.81 = 2,880.19/x
  3. Step 3: Cross multiply
    7,810.51x = 11,717.81 × 2,880.19
  4. Step 4: Simplify right side
    7,810.51x = 33,749,546.43
  5. Step 5: Solve for x
    x = 33,749,546.43/7,810.51
  6. Step 6: Final answer
    x = 4,321.04

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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.