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Finding the Fourth Proportional to 6,945.40, 9,580.03 and 4,289.41

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Solution

The fourth proportional to 6,945.40, 9,580.03 and 4,289.41 is: 5,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.40 : 9,580.03 = 4,289.41 : x
  2. Step 2: Convert to fraction form
    6,945.40/9,580.03 = 4,289.41/x
  3. Step 3: Cross multiply
    6,945.40x = 9,580.03 × 4,289.41
  4. Step 4: Simplify right side
    6,945.40x = 41,092,676.48
  5. Step 5: Solve for x
    x = 41,092,676.48/6,945.40
  6. Step 6: Final answer
    x = 5,916.53

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1.5x scale

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.