Home / 3,097.35-4,271.95-2,153.12

Finding the Fourth Proportional to 3,097.35, 4,271.95 and 2,153.12

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Solution

The fourth proportional to 3,097.35, 4,271.95 and 2,153.12 is: 2,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.35 : 4,271.95 = 2,153.12 : x
  2. Step 2: Convert to fraction form
    3,097.35/4,271.95 = 2,153.12/x
  3. Step 3: Cross multiply
    3,097.35x = 4,271.95 × 2,153.12
  4. Step 4: Simplify right side
    3,097.35x = 9,198,020.98
  5. Step 5: Solve for x
    x = 9,198,020.98/3,097.35
  6. Step 6: Final answer
    x = 2,969.64

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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.