Home / 3,060.95-4,222.87-1,999.64

Finding the Fourth Proportional to 3,060.95, 4,222.87 and 1,999.64

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Solution

The fourth proportional to 3,060.95, 4,222.87 and 1,999.64 is: 2,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.95 : 4,222.87 = 1,999.64 : x
  2. Step 2: Convert to fraction form
    3,060.95/4,222.87 = 1,999.64/x
  3. Step 3: Cross multiply
    3,060.95x = 4,222.87 × 1,999.64
  4. Step 4: Simplify right side
    3,060.95x = 8,444,225.32
  5. Step 5: Solve for x
    x = 8,444,225.32/3,060.95
  6. Step 6: Final answer
    x = 2,758.70

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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.