Home / 5,151.49-7,109.05-2,793.63

Finding the Fourth Proportional to 5,151.49, 7,109.05 and 2,793.63

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Solution

The fourth proportional to 5,151.49, 7,109.05 and 2,793.63 is: 3,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.49 : 7,109.05 = 2,793.63 : x
  2. Step 2: Convert to fraction form
    5,151.49/7,109.05 = 2,793.63/x
  3. Step 3: Cross multiply
    5,151.49x = 7,109.05 × 2,793.63
  4. Step 4: Simplify right side
    5,151.49x = 19,860,055.35
  5. Step 5: Solve for x
    x = 19,860,055.35/5,151.49
  6. Step 6: Final answer
    x = 3,855.21

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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.