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Finding the Fourth Proportional to 6,395.60, 9,603.82 and 3,945.99

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Solution

The fourth proportional to 6,395.60, 9,603.82 and 3,945.99 is: 5,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.60 : 9,603.82 = 3,945.99 : x
  2. Step 2: Convert to fraction form
    6,395.60/9,603.82 = 3,945.99/x
  3. Step 3: Cross multiply
    6,395.60x = 9,603.82 × 3,945.99
  4. Step 4: Simplify right side
    6,395.60x = 37,896,509.93
  5. Step 5: Solve for x
    x = 37,896,509.93/6,395.60
  6. Step 6: Final answer
    x = 5,925.41

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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.