Home / 5,187.93-7,778.56-2,228.31

Finding the Fourth Proportional to 5,187.93, 7,778.56 and 2,228.31

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Solution

The fourth proportional to 5,187.93, 7,778.56 and 2,228.31 is: 3,341.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.93 : 7,778.56 = 2,228.31 : x
  2. Step 2: Convert to fraction form
    5,187.93/7,778.56 = 2,228.31/x
  3. Step 3: Cross multiply
    5,187.93x = 7,778.56 × 2,228.31
  4. Step 4: Simplify right side
    5,187.93x = 17,333,043.03
  5. Step 5: Solve for x
    x = 17,333,043.03/5,187.93
  6. Step 6: Final answer
    x = 3,341.03

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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.