Home / 2,179.95-3,267.69-2,117.98

Finding the Fourth Proportional to 2,179.95, 3,267.69 and 2,117.98

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Solution

The fourth proportional to 2,179.95, 3,267.69 and 2,117.98 is: 3,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.95 : 3,267.69 = 2,117.98 : x
  2. Step 2: Convert to fraction form
    2,179.95/3,267.69 = 2,117.98/x
  3. Step 3: Cross multiply
    2,179.95x = 3,267.69 × 2,117.98
  4. Step 4: Simplify right side
    2,179.95x = 6,920,902.07
  5. Step 5: Solve for x
    x = 6,920,902.07/2,179.95
  6. Step 6: Final answer
    x = 3,174.80

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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.