Home / 2,099.12-3,148.77-1,485.56

Finding the Fourth Proportional to 2,099.12, 3,148.77 and 1,485.56

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Solution

The fourth proportional to 2,099.12, 3,148.77 and 1,485.56 is: 2,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.12 : 3,148.77 = 1,485.56 : x
  2. Step 2: Convert to fraction form
    2,099.12/3,148.77 = 1,485.56/x
  3. Step 3: Cross multiply
    2,099.12x = 3,148.77 × 1,485.56
  4. Step 4: Simplify right side
    2,099.12x = 4,677,700.20
  5. Step 5: Solve for x
    x = 4,677,700.20/2,099.12
  6. Step 6: Final answer
    x = 2,228.42

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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.