Home / 5,124.51-7,071.44-2,885.94

Finding the Fourth Proportional to 5,124.51, 7,071.44 and 2,885.94

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Solution

The fourth proportional to 5,124.51, 7,071.44 and 2,885.94 is: 3,982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.51 : 7,071.44 = 2,885.94 : x
  2. Step 2: Convert to fraction form
    5,124.51/7,071.44 = 2,885.94/x
  3. Step 3: Cross multiply
    5,124.51x = 7,071.44 × 2,885.94
  4. Step 4: Simplify right side
    5,124.51x = 20,407,737.12
  5. Step 5: Solve for x
    x = 20,407,737.12/5,124.51
  6. Step 6: Final answer
    x = 3,982.38

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Half scale
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Double scale
Find fourth proportional to 5,125.51, 7,072.81 and 2,886.94
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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.