Home / 3,069.40-4,603.96-2,142.28

Finding the Fourth Proportional to 3,069.40, 4,603.96 and 2,142.28

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Solution

The fourth proportional to 3,069.40, 4,603.96 and 2,142.28 is: 3,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.40 : 4,603.96 = 2,142.28 : x
  2. Step 2: Convert to fraction form
    3,069.40/4,603.96 = 2,142.28/x
  3. Step 3: Cross multiply
    3,069.40x = 4,603.96 × 2,142.28
  4. Step 4: Simplify right side
    3,069.40x = 9,862,971.43
  5. Step 5: Solve for x
    x = 9,862,971.43/3,069.40
  6. Step 6: Final answer
    x = 3,213.32

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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.