Home / 3,518.39-4,855.35-1,946.57

Finding the Fourth Proportional to 3,518.39, 4,855.35 and 1,946.57

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Solution

The fourth proportional to 3,518.39, 4,855.35 and 1,946.57 is: 2,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.39 : 4,855.35 = 1,946.57 : x
  2. Step 2: Convert to fraction form
    3,518.39/4,855.35 = 1,946.57/x
  3. Step 3: Cross multiply
    3,518.39x = 4,855.35 × 1,946.57
  4. Step 4: Simplify right side
    3,518.39x = 9,451,278.65
  5. Step 5: Solve for x
    x = 9,451,278.65/3,518.39
  6. Step 6: Final answer
    x = 2,686.25

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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.