Home / 5,518.79-7,618.62-3,841.49

Finding the Fourth Proportional to 5,518.79, 7,618.62 and 3,841.49

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Solution

The fourth proportional to 5,518.79, 7,618.62 and 3,841.49 is: 5,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.79 : 7,618.62 = 3,841.49 : x
  2. Step 2: Convert to fraction form
    5,518.79/7,618.62 = 3,841.49/x
  3. Step 3: Cross multiply
    5,518.79x = 7,618.62 × 3,841.49
  4. Step 4: Simplify right side
    5,518.79x = 29,266,852.54
  5. Step 5: Solve for x
    x = 29,266,852.54/5,518.79
  6. Step 6: Final answer
    x = 5,303.13

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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.