Home / 3,173.69-4,376.28-2,165.51

Finding the Fourth Proportional to 3,173.69, 4,376.28 and 2,165.51

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Solution

The fourth proportional to 3,173.69, 4,376.28 and 2,165.51 is: 2,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.69 : 4,376.28 = 2,165.51 : x
  2. Step 2: Convert to fraction form
    3,173.69/4,376.28 = 2,165.51/x
  3. Step 3: Cross multiply
    3,173.69x = 4,376.28 × 2,165.51
  4. Step 4: Simplify right side
    3,173.69x = 9,476,872.67
  5. Step 5: Solve for x
    x = 9,476,872.67/3,173.69
  6. Step 6: Final answer
    x = 2,986.07

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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.