Home / 2,159.94-3,000.30-2,126.43

Finding the Fourth Proportional to 2,159.94, 3,000.30 and 2,126.43

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Solution

The fourth proportional to 2,159.94, 3,000.30 and 2,126.43 is: 2,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.94 : 3,000.30 = 2,126.43 : x
  2. Step 2: Convert to fraction form
    2,159.94/3,000.30 = 2,126.43/x
  3. Step 3: Cross multiply
    2,159.94x = 3,000.30 × 2,126.43
  4. Step 4: Simplify right side
    2,159.94x = 6,379,927.93
  5. Step 5: Solve for x
    x = 6,379,927.93/2,159.94
  6. Step 6: Final answer
    x = 2,953.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.