Home / 3,210.89-4,431.48-2,317.58

Finding the Fourth Proportional to 3,210.89, 4,431.48 and 2,317.58

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Solution

The fourth proportional to 3,210.89, 4,431.48 and 2,317.58 is: 3,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.89 : 4,431.48 = 2,317.58 : x
  2. Step 2: Convert to fraction form
    3,210.89/4,431.48 = 2,317.58/x
  3. Step 3: Cross multiply
    3,210.89x = 4,431.48 × 2,317.58
  4. Step 4: Simplify right side
    3,210.89x = 10,270,287.26
  5. Step 5: Solve for x
    x = 10,270,287.26/3,210.89
  6. Step 6: Final answer
    x = 3,198.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.