Home / 5,100.70-7,039.67-2,832.55

Finding the Fourth Proportional to 5,100.70, 7,039.67 and 2,832.55

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Solution

The fourth proportional to 5,100.70, 7,039.67 and 2,832.55 is: 3,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.70 : 7,039.67 = 2,832.55 : x
  2. Step 2: Convert to fraction form
    5,100.70/7,039.67 = 2,832.55/x
  3. Step 3: Cross multiply
    5,100.70x = 7,039.67 × 2,832.55
  4. Step 4: Simplify right side
    5,100.70x = 19,940,206.74
  5. Step 5: Solve for x
    x = 19,940,206.74/5,100.70
  6. Step 6: Final answer
    x = 3,909.31

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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.