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Finding the Fourth Proportional to 4,815.04, 7,215.16 and 3,576.64

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Solution

The fourth proportional to 4,815.04, 7,215.16 and 3,576.64 is: 5,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.04 : 7,215.16 = 3,576.64 : x
  2. Step 2: Convert to fraction form
    4,815.04/7,215.16 = 3,576.64/x
  3. Step 3: Cross multiply
    4,815.04x = 7,215.16 × 3,576.64
  4. Step 4: Simplify right side
    4,815.04x = 25,806,029.86
  5. Step 5: Solve for x
    x = 25,806,029.86/4,815.04
  6. Step 6: Final answer
    x = 5,359.46

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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.