Home / 5,280.78-7,289.09-3,044.15

Finding the Fourth Proportional to 5,280.78, 7,289.09 and 3,044.15

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Solution

The fourth proportional to 5,280.78, 7,289.09 and 3,044.15 is: 4,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.78 : 7,289.09 = 3,044.15 : x
  2. Step 2: Convert to fraction form
    5,280.78/7,289.09 = 3,044.15/x
  3. Step 3: Cross multiply
    5,280.78x = 7,289.09 × 3,044.15
  4. Step 4: Simplify right side
    5,280.78x = 22,189,054.49
  5. Step 5: Solve for x
    x = 22,189,054.49/5,280.78
  6. Step 6: Final answer
    x = 4,201.85

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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.