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Finding the Fourth Proportional to 5,787, 8,681.98 and 1,683

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Solution

The fourth proportional to 5,787, 8,681.98 and 1,683 is: 2,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787 : 8,681.98 = 1,683 : x
  2. Step 2: Convert to fraction form
    5,787/8,681.98 = 1,683/x
  3. Step 3: Cross multiply
    5,787x = 8,681.98 × 1,683
  4. Step 4: Simplify right side
    5,787x = 14,611,772.34
  5. Step 5: Solve for x
    x = 14,611,772.34/5,787
  6. Step 6: Final answer
    x = 2,524.93

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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.