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Finding the Fourth Proportional to 3,174.49, 4,762.19 and 983.41

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Solution

The fourth proportional to 3,174.49, 4,762.19 and 983.41 is: 1,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.49 : 4,762.19 = 983.41 : x
  2. Step 2: Convert to fraction form
    3,174.49/4,762.19 = 983.41/x
  3. Step 3: Cross multiply
    3,174.49x = 4,762.19 × 983.41
  4. Step 4: Simplify right side
    3,174.49x = 4,683,175.82
  5. Step 5: Solve for x
    x = 4,683,175.82/3,174.49
  6. Step 6: Final answer
    x = 1,475.25

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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.