Home / 3,060.81-4,222.71-2,165.85

Finding the Fourth Proportional to 3,060.81, 4,222.71 and 2,165.85

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Solution

The fourth proportional to 3,060.81, 4,222.71 and 2,165.85 is: 2,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.81 : 4,222.71 = 2,165.85 : x
  2. Step 2: Convert to fraction form
    3,060.81/4,222.71 = 2,165.85/x
  3. Step 3: Cross multiply
    3,060.81x = 4,222.71 × 2,165.85
  4. Step 4: Simplify right side
    3,060.81x = 9,145,756.45
  5. Step 5: Solve for x
    x = 9,145,756.45/3,060.81
  6. Step 6: Final answer
    x = 2,988.02

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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.