Home / 5,491.70-7,579.98-3,394.64

Finding the Fourth Proportional to 5,491.70, 7,579.98 and 3,394.64

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Solution

The fourth proportional to 5,491.70, 7,579.98 and 3,394.64 is: 4,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.70 : 7,579.98 = 3,394.64 : x
  2. Step 2: Convert to fraction form
    5,491.70/7,579.98 = 3,394.64/x
  3. Step 3: Cross multiply
    5,491.70x = 7,579.98 × 3,394.64
  4. Step 4: Simplify right side
    5,491.70x = 25,731,303.31
  5. Step 5: Solve for x
    x = 25,731,303.31/5,491.70
  6. Step 6: Final answer
    x = 4,685.49

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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.