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Finding the Fourth Proportional to 3,173.16, 4,378.84 and 1,775.84

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Solution

The fourth proportional to 3,173.16, 4,378.84 and 1,775.84 is: 2,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.16 : 4,378.84 = 1,775.84 : x
  2. Step 2: Convert to fraction form
    3,173.16/4,378.84 = 1,775.84/x
  3. Step 3: Cross multiply
    3,173.16x = 4,378.84 × 1,775.84
  4. Step 4: Simplify right side
    3,173.16x = 7,776,119.23
  5. Step 5: Solve for x
    x = 7,776,119.23/3,173.16
  6. Step 6: Final answer
    x = 2,450.59

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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.