Home / 5,338.36-7,366.80-2,980.45

Finding the Fourth Proportional to 5,338.36, 7,366.80 and 2,980.45

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Solution

The fourth proportional to 5,338.36, 7,366.80 and 2,980.45 is: 4,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.36 : 7,366.80 = 2,980.45 : x
  2. Step 2: Convert to fraction form
    5,338.36/7,366.80 = 2,980.45/x
  3. Step 3: Cross multiply
    5,338.36x = 7,366.80 × 2,980.45
  4. Step 4: Simplify right side
    5,338.36x = 21,956,379.06
  5. Step 5: Solve for x
    x = 21,956,379.06/5,338.36
  6. Step 6: Final answer
    x = 4,112.94

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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.