Home / 2,576.16-3,865.20-1,190.16

Finding the Fourth Proportional to 2,576.16, 3,865.20 and 1,190.16

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Solution

The fourth proportional to 2,576.16, 3,865.20 and 1,190.16 is: 1,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.16 : 3,865.20 = 1,190.16 : x
  2. Step 2: Convert to fraction form
    2,576.16/3,865.20 = 1,190.16/x
  3. Step 3: Cross multiply
    2,576.16x = 3,865.20 × 1,190.16
  4. Step 4: Simplify right side
    2,576.16x = 4,600,206.43
  5. Step 5: Solve for x
    x = 4,600,206.43/2,576.16
  6. Step 6: Final answer
    x = 1,785.68

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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.