Home / 3,145.98-4,343.08-2,474.21

Finding the Fourth Proportional to 3,145.98, 4,343.08 and 2,474.21

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Solution

The fourth proportional to 3,145.98, 4,343.08 and 2,474.21 is: 3,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.98 : 4,343.08 = 2,474.21 : x
  2. Step 2: Convert to fraction form
    3,145.98/4,343.08 = 2,474.21/x
  3. Step 3: Cross multiply
    3,145.98x = 4,343.08 × 2,474.21
  4. Step 4: Simplify right side
    3,145.98x = 10,745,673.34
  5. Step 5: Solve for x
    x = 10,745,673.34/3,145.98
  6. Step 6: Final answer
    x = 3,415.68

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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.