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Finding the Fourth Proportional to 1,096.37, 1,513.11 and 624.35

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Solution

The fourth proportional to 1,096.37, 1,513.11 and 624.35 is: 861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.37 : 1,513.11 = 624.35 : x
  2. Step 2: Convert to fraction form
    1,096.37/1,513.11 = 624.35/x
  3. Step 3: Cross multiply
    1,096.37x = 1,513.11 × 624.35
  4. Step 4: Simplify right side
    1,096.37x = 944,702.66
  5. Step 5: Solve for x
    x = 944,702.66/1,096.37
  6. Step 6: Final answer
    x = 861.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.