Home / 2,826.69-4,238.66-977.15

Finding the Fourth Proportional to 2,826.69, 4,238.66 and 977.15

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Solution

The fourth proportional to 2,826.69, 4,238.66 and 977.15 is: 1,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.69 : 4,238.66 = 977.15 : x
  2. Step 2: Convert to fraction form
    2,826.69/4,238.66 = 977.15/x
  3. Step 3: Cross multiply
    2,826.69x = 4,238.66 × 977.15
  4. Step 4: Simplify right side
    2,826.69x = 4,141,819.66
  5. Step 5: Solve for x
    x = 4,141,819.66/2,826.69
  6. Step 6: Final answer
    x = 1,465.25

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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.