Home / 2,751.21-4,124.29-1,190.23

Finding the Fourth Proportional to 2,751.21, 4,124.29 and 1,190.23

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Solution

The fourth proportional to 2,751.21, 4,124.29 and 1,190.23 is: 1,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.21 : 4,124.29 = 1,190.23 : x
  2. Step 2: Convert to fraction form
    2,751.21/4,124.29 = 1,190.23/x
  3. Step 3: Cross multiply
    2,751.21x = 4,124.29 × 1,190.23
  4. Step 4: Simplify right side
    2,751.21x = 4,908,853.69
  5. Step 5: Solve for x
    x = 4,908,853.69/2,751.21
  6. Step 6: Final answer
    x = 1,784.25

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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.