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Finding the Fourth Proportional to 2,999.98, 4,139.93 and 1,881.57

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Solution

The fourth proportional to 2,999.98, 4,139.93 and 1,881.57 is: 2,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.98 : 4,139.93 = 1,881.57 : x
  2. Step 2: Convert to fraction form
    2,999.98/4,139.93 = 1,881.57/x
  3. Step 3: Cross multiply
    2,999.98x = 4,139.93 × 1,881.57
  4. Step 4: Simplify right side
    2,999.98x = 7,789,572.79
  5. Step 5: Solve for x
    x = 7,789,572.79/2,999.98
  6. Step 6: Final answer
    x = 2,596.54

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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.