Home / 5,122.39-7,068.72-3,133.03

Finding the Fourth Proportional to 5,122.39, 7,068.72 and 3,133.03

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Solution

The fourth proportional to 5,122.39, 7,068.72 and 3,133.03 is: 4,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.39 : 7,068.72 = 3,133.03 : x
  2. Step 2: Convert to fraction form
    5,122.39/7,068.72 = 3,133.03/x
  3. Step 3: Cross multiply
    5,122.39x = 7,068.72 × 3,133.03
  4. Step 4: Simplify right side
    5,122.39x = 22,146,511.82
  5. Step 5: Solve for x
    x = 22,146,511.82/5,122.39
  6. Step 6: Final answer
    x = 4,323.47

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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.