Home / 5,140.92-7,703.94-2,798.94

Finding the Fourth Proportional to 5,140.92, 7,703.94 and 2,798.94

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Solution

The fourth proportional to 5,140.92, 7,703.94 and 2,798.94 is: 4,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.92 : 7,703.94 = 2,798.94 : x
  2. Step 2: Convert to fraction form
    5,140.92/7,703.94 = 2,798.94/x
  3. Step 3: Cross multiply
    5,140.92x = 7,703.94 × 2,798.94
  4. Step 4: Simplify right side
    5,140.92x = 21,562,865.82
  5. Step 5: Solve for x
    x = 21,562,865.82/5,140.92
  6. Step 6: Final answer
    x = 4,194.36

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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.