Home / 3,518.78-4,855.75-2,084.06

Finding the Fourth Proportional to 3,518.78, 4,855.75 and 2,084.06

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Solution

The fourth proportional to 3,518.78, 4,855.75 and 2,084.06 is: 2,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.78 : 4,855.75 = 2,084.06 : x
  2. Step 2: Convert to fraction form
    3,518.78/4,855.75 = 2,084.06/x
  3. Step 3: Cross multiply
    3,518.78x = 4,855.75 × 2,084.06
  4. Step 4: Simplify right side
    3,518.78x = 10,119,650.07
  5. Step 5: Solve for x
    x = 10,119,650.07/3,518.78
  6. Step 6: Final answer
    x = 2,875.90

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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.