Home / 3,097.95-4,271.97-2,154.80

Finding the Fourth Proportional to 3,097.95, 4,271.97 and 2,154.80

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Solution

The fourth proportional to 3,097.95, 4,271.97 and 2,154.80 is: 2,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.95 : 4,271.97 = 2,154.80 : x
  2. Step 2: Convert to fraction form
    3,097.95/4,271.97 = 2,154.80/x
  3. Step 3: Cross multiply
    3,097.95x = 4,271.97 × 2,154.80
  4. Step 4: Simplify right side
    3,097.95x = 9,205,240.96
  5. Step 5: Solve for x
    x = 9,205,240.96/3,097.95
  6. Step 6: Final answer
    x = 2,971.40

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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.