Home / 3,120.20-4,676.39-1,560.65

Finding the Fourth Proportional to 3,120.20, 4,676.39 and 1,560.65

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Solution

The fourth proportional to 3,120.20, 4,676.39 and 1,560.65 is: 2,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.20 : 4,676.39 = 1,560.65 : x
  2. Step 2: Convert to fraction form
    3,120.20/4,676.39 = 1,560.65/x
  3. Step 3: Cross multiply
    3,120.20x = 4,676.39 × 1,560.65
  4. Step 4: Simplify right side
    3,120.20x = 7,298,182.72
  5. Step 5: Solve for x
    x = 7,298,182.72/3,120.20
  6. Step 6: Final answer
    x = 2,339.01

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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.