Home / 5,004.72-6,905.52-3,115.80

Finding the Fourth Proportional to 5,004.72, 6,905.52 and 3,115.80

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Solution

The fourth proportional to 5,004.72, 6,905.52 and 3,115.80 is: 4,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,004.72 : 6,905.52 = 3,115.80 : x
  2. Step 2: Convert to fraction form
    5,004.72/6,905.52 = 3,115.80/x
  3. Step 3: Cross multiply
    5,004.72x = 6,905.52 × 3,115.80
  4. Step 4: Simplify right side
    5,004.72x = 21,516,219.22
  5. Step 5: Solve for x
    x = 21,516,219.22/5,004.72
  6. Step 6: Final answer
    x = 4,299.19

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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.