Home / 2,989.05-4,482.96-2,840.85

Finding the Fourth Proportional to 2,989.05, 4,482.96 and 2,840.85

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Solution

The fourth proportional to 2,989.05, 4,482.96 and 2,840.85 is: 4,260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.05 : 4,482.96 = 2,840.85 : x
  2. Step 2: Convert to fraction form
    2,989.05/4,482.96 = 2,840.85/x
  3. Step 3: Cross multiply
    2,989.05x = 4,482.96 × 2,840.85
  4. Step 4: Simplify right side
    2,989.05x = 12,735,406.26
  5. Step 5: Solve for x
    x = 12,735,406.26/2,989.05
  6. Step 6: Final answer
    x = 4,260.69

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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.