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Finding the Fourth Proportional to 3,325.96, 4,988.94 and 1,957

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Solution

The fourth proportional to 3,325.96, 4,988.94 and 1,957 is: 2,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.96 : 4,988.94 = 1,957 : x
  2. Step 2: Convert to fraction form
    3,325.96/4,988.94 = 1,957/x
  3. Step 3: Cross multiply
    3,325.96x = 4,988.94 × 1,957
  4. Step 4: Simplify right side
    3,325.96x = 9,763,355.58
  5. Step 5: Solve for x
    x = 9,763,355.58/3,325.96
  6. Step 6: Final answer
    x = 2,935.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.