Home / 4,287.67-6,431.49-2,816.18

Finding the Fourth Proportional to 4,287.67, 6,431.49 and 2,816.18

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Solution

The fourth proportional to 4,287.67, 6,431.49 and 2,816.18 is: 4,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.67 : 6,431.49 = 2,816.18 : x
  2. Step 2: Convert to fraction form
    4,287.67/6,431.49 = 2,816.18/x
  3. Step 3: Cross multiply
    4,287.67x = 6,431.49 × 2,816.18
  4. Step 4: Simplify right side
    4,287.67x = 18,112,233.51
  5. Step 5: Solve for x
    x = 18,112,233.51/4,287.67
  6. Step 6: Final answer
    x = 4,224.26

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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.