Home / 3,103.60-4,636.54-2,219.08

Finding the Fourth Proportional to 3,103.60, 4,636.54 and 2,219.08

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Solution

The fourth proportional to 3,103.60, 4,636.54 and 2,219.08 is: 3,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.60 : 4,636.54 = 2,219.08 : x
  2. Step 2: Convert to fraction form
    3,103.60/4,636.54 = 2,219.08/x
  3. Step 3: Cross multiply
    3,103.60x = 4,636.54 × 2,219.08
  4. Step 4: Simplify right side
    3,103.60x = 10,288,853.18
  5. Step 5: Solve for x
    x = 10,288,853.18/3,103.60
  6. Step 6: Final answer
    x = 3,315.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.