Home / 3,150.70-4,730.85-2,421.10

Finding the Fourth Proportional to 3,150.70, 4,730.85 and 2,421.10

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Solution

The fourth proportional to 3,150.70, 4,730.85 and 2,421.10 is: 3,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.70 : 4,730.85 = 2,421.10 : x
  2. Step 2: Convert to fraction form
    3,150.70/4,730.85 = 2,421.10/x
  3. Step 3: Cross multiply
    3,150.70x = 4,730.85 × 2,421.10
  4. Step 4: Simplify right side
    3,150.70x = 11,453,860.94
  5. Step 5: Solve for x
    x = 11,453,860.94/3,150.70
  6. Step 6: Final answer
    x = 3,635.34

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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.