Home / 2,790.42-4,185.63-1,059.05

Finding the Fourth Proportional to 2,790.42, 4,185.63 and 1,059.05

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Solution

The fourth proportional to 2,790.42, 4,185.63 and 1,059.05 is: 1,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.42 : 4,185.63 = 1,059.05 : x
  2. Step 2: Convert to fraction form
    2,790.42/4,185.63 = 1,059.05/x
  3. Step 3: Cross multiply
    2,790.42x = 4,185.63 × 1,059.05
  4. Step 4: Simplify right side
    2,790.42x = 4,432,770.52
  5. Step 5: Solve for x
    x = 4,432,770.52/2,790.42
  6. Step 6: Final answer
    x = 1,588.57

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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.