Home / 3,078.68-4,619.55-1,435.35

Finding the Fourth Proportional to 3,078.68, 4,619.55 and 1,435.35

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Solution

The fourth proportional to 3,078.68, 4,619.55 and 1,435.35 is: 2,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.68 : 4,619.55 = 1,435.35 : x
  2. Step 2: Convert to fraction form
    3,078.68/4,619.55 = 1,435.35/x
  3. Step 3: Cross multiply
    3,078.68x = 4,619.55 × 1,435.35
  4. Step 4: Simplify right side
    3,078.68x = 6,630,671.09
  5. Step 5: Solve for x
    x = 6,630,671.09/3,078.68
  6. Step 6: Final answer
    x = 2,153.74

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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.