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Finding the Fourth Proportional to 5,579.18, 7,699.02 and 3,339.74

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Solution

The fourth proportional to 5,579.18, 7,699.02 and 3,339.74 is: 4,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.18 : 7,699.02 = 3,339.74 : x
  2. Step 2: Convert to fraction form
    5,579.18/7,699.02 = 3,339.74/x
  3. Step 3: Cross multiply
    5,579.18x = 7,699.02 × 3,339.74
  4. Step 4: Simplify right side
    5,579.18x = 25,712,725.05
  5. Step 5: Solve for x
    x = 25,712,725.05/5,579.18
  6. Step 6: Final answer
    x = 4,608.69

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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.