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Finding the Fourth Proportional to 3,603.88, 4,973.34 and 1,947.88

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Solution

The fourth proportional to 3,603.88, 4,973.34 and 1,947.88 is: 2,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.88 : 4,973.34 = 1,947.88 : x
  2. Step 2: Convert to fraction form
    3,603.88/4,973.34 = 1,947.88/x
  3. Step 3: Cross multiply
    3,603.88x = 4,973.34 × 1,947.88
  4. Step 4: Simplify right side
    3,603.88x = 9,687,469.52
  5. Step 5: Solve for x
    x = 9,687,469.52/3,603.88
  6. Step 6: Final answer
    x = 2,688.07

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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.