Home / 3,518.40-4,855.44-1,946.46

Finding the Fourth Proportional to 3,518.40, 4,855.44 and 1,946.46

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Solution

The fourth proportional to 3,518.40, 4,855.44 and 1,946.46 is: 2,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.40 : 4,855.44 = 1,946.46 : x
  2. Step 2: Convert to fraction form
    3,518.40/4,855.44 = 1,946.46/x
  3. Step 3: Cross multiply
    3,518.40x = 4,855.44 × 1,946.46
  4. Step 4: Simplify right side
    3,518.40x = 9,450,919.74
  5. Step 5: Solve for x
    x = 9,450,919.74/3,518.40
  6. Step 6: Final answer
    x = 2,686.14

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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.