Home / 3,518.84-5,278.62-1,210.34

Finding the Fourth Proportional to 3,518.84, 5,278.62 and 1,210.34

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Solution

The fourth proportional to 3,518.84, 5,278.62 and 1,210.34 is: 1,815.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.84 : 5,278.62 = 1,210.34 : x
  2. Step 2: Convert to fraction form
    3,518.84/5,278.62 = 1,210.34/x
  3. Step 3: Cross multiply
    3,518.84x = 5,278.62 × 1,210.34
  4. Step 4: Simplify right side
    3,518.84x = 6,388,924.93
  5. Step 5: Solve for x
    x = 6,388,924.93/3,518.84
  6. Step 6: Final answer
    x = 1,815.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.