Home / 2,772.65-3,826.23-1,513.70

Finding the Fourth Proportional to 2,772.65, 3,826.23 and 1,513.70

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Solution

The fourth proportional to 2,772.65, 3,826.23 and 1,513.70 is: 2,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.65 : 3,826.23 = 1,513.70 : x
  2. Step 2: Convert to fraction form
    2,772.65/3,826.23 = 1,513.70/x
  3. Step 3: Cross multiply
    2,772.65x = 3,826.23 × 1,513.70
  4. Step 4: Simplify right side
    2,772.65x = 5,791,745.22
  5. Step 5: Solve for x
    x = 5,791,745.22/2,772.65
  6. Step 6: Final answer
    x = 2,088.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.