Home / 3,045.84-4,198.95-2,161.32

Finding the Fourth Proportional to 3,045.84, 4,198.95 and 2,161.32

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Solution

The fourth proportional to 3,045.84, 4,198.95 and 2,161.32 is: 2,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.84 : 4,198.95 = 2,161.32 : x
  2. Step 2: Convert to fraction form
    3,045.84/4,198.95 = 2,161.32/x
  3. Step 3: Cross multiply
    3,045.84x = 4,198.95 × 2,161.32
  4. Step 4: Simplify right side
    3,045.84x = 9,075,274.61
  5. Step 5: Solve for x
    x = 9,075,274.61/3,045.84
  6. Step 6: Final answer
    x = 2,979.56

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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.