Home / 5,118.49-7,063.71-2,881.07

Finding the Fourth Proportional to 5,118.49, 7,063.71 and 2,881.07

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Solution

The fourth proportional to 5,118.49, 7,063.71 and 2,881.07 is: 3,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.49 : 7,063.71 = 2,881.07 : x
  2. Step 2: Convert to fraction form
    5,118.49/7,063.71 = 2,881.07/x
  3. Step 3: Cross multiply
    5,118.49x = 7,063.71 × 2,881.07
  4. Step 4: Simplify right side
    5,118.49x = 20,351,023.34
  5. Step 5: Solve for x
    x = 20,351,023.34/5,118.49
  6. Step 6: Final answer
    x = 3,975.98

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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.