Home / 3,173.15-4,756.68-2,078.30

Finding the Fourth Proportional to 3,173.15, 4,756.68 and 2,078.30

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Solution

The fourth proportional to 3,173.15, 4,756.68 and 2,078.30 is: 3,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.15 : 4,756.68 = 2,078.30 : x
  2. Step 2: Convert to fraction form
    3,173.15/4,756.68 = 2,078.30/x
  3. Step 3: Cross multiply
    3,173.15x = 4,756.68 × 2,078.30
  4. Step 4: Simplify right side
    3,173.15x = 9,885,784.26
  5. Step 5: Solve for x
    x = 9,885,784.26/3,173.15
  6. Step 6: Final answer
    x = 3,115.45

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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.