Home / 5,028-6,938.76-2,790.24

Finding the Fourth Proportional to 5,028, 6,938.76 and 2,790.24

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Solution

The fourth proportional to 5,028, 6,938.76 and 2,790.24 is: 3,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028 : 6,938.76 = 2,790.24 : x
  2. Step 2: Convert to fraction form
    5,028/6,938.76 = 2,790.24/x
  3. Step 3: Cross multiply
    5,028x = 6,938.76 × 2,790.24
  4. Step 4: Simplify right side
    5,028x = 19,360,805.70
  5. Step 5: Solve for x
    x = 19,360,805.70/5,028
  6. Step 6: Final answer
    x = 3,850.60

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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.