Home / 5,027.69-6,938.61-2,790.00

Finding the Fourth Proportional to 5,027.69, 6,938.61 and 2,790.00

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Solution

The fourth proportional to 5,027.69, 6,938.61 and 2,790.00 is: 3,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,027.69 : 6,938.61 = 2,790.00 : x
  2. Step 2: Convert to fraction form
    5,027.69/6,938.61 = 2,790.00/x
  3. Step 3: Cross multiply
    5,027.69x = 6,938.61 × 2,790.00
  4. Step 4: Simplify right side
    5,027.69x = 19,358,746.65
  5. Step 5: Solve for x
    x = 19,358,746.65/5,027.69
  6. Step 6: Final answer
    x = 3,850.42

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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.