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Finding the Fourth Proportional to 3,523.84, 5,285.86 and 1,058.72

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Solution

The fourth proportional to 3,523.84, 5,285.86 and 1,058.72 is: 1,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,523.84 : 5,285.86 = 1,058.72 : x
  2. Step 2: Convert to fraction form
    3,523.84/5,285.86 = 1,058.72/x
  3. Step 3: Cross multiply
    3,523.84x = 5,285.86 × 1,058.72
  4. Step 4: Simplify right side
    3,523.84x = 5,596,245.70
  5. Step 5: Solve for x
    x = 5,596,245.70/3,523.84
  6. Step 6: Final answer
    x = 1,588.11

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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.