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Finding the Fourth Proportional to 5,379.04, 7,409.84 and 4,579.80

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Solution

The fourth proportional to 5,379.04, 7,409.84 and 4,579.80 is: 6,308.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.04 : 7,409.84 = 4,579.80 : x
  2. Step 2: Convert to fraction form
    5,379.04/7,409.84 = 4,579.80/x
  3. Step 3: Cross multiply
    5,379.04x = 7,409.84 × 4,579.80
  4. Step 4: Simplify right side
    5,379.04x = 33,935,585.23
  5. Step 5: Solve for x
    x = 33,935,585.23/5,379.04
  6. Step 6: Final answer
    x = 6,308.86

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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.