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Finding the Fourth Proportional to 5,755.40, 8,630.93 and 1,858.76

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Solution

The fourth proportional to 5,755.40, 8,630.93 and 1,858.76 is: 2,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.40 : 8,630.93 = 1,858.76 : x
  2. Step 2: Convert to fraction form
    5,755.40/8,630.93 = 1,858.76/x
  3. Step 3: Cross multiply
    5,755.40x = 8,630.93 × 1,858.76
  4. Step 4: Simplify right side
    5,755.40x = 16,042,827.45
  5. Step 5: Solve for x
    x = 16,042,827.45/5,755.40
  6. Step 6: Final answer
    x = 2,787.44

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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.