Home / 5,004.20-6,905.20-3,089.72

Finding the Fourth Proportional to 5,004.20, 6,905.20 and 3,089.72

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Solution

The fourth proportional to 5,004.20, 6,905.20 and 3,089.72 is: 4,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,004.20 : 6,905.20 = 3,089.72 : x
  2. Step 2: Convert to fraction form
    5,004.20/6,905.20 = 3,089.72/x
  3. Step 3: Cross multiply
    5,004.20x = 6,905.20 × 3,089.72
  4. Step 4: Simplify right side
    5,004.20x = 21,335,134.54
  5. Step 5: Solve for x
    x = 21,335,134.54/5,004.20
  6. Step 6: Final answer
    x = 4,263.45

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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.