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Finding the Fourth Proportional to 3,603.61, 5,381.08 and 2,946.75

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Solution

The fourth proportional to 3,603.61, 5,381.08 and 2,946.75 is: 4,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.61 : 5,381.08 = 2,946.75 : x
  2. Step 2: Convert to fraction form
    3,603.61/5,381.08 = 2,946.75/x
  3. Step 3: Cross multiply
    3,603.61x = 5,381.08 × 2,946.75
  4. Step 4: Simplify right side
    3,603.61x = 15,856,731.92
  5. Step 5: Solve for x
    x = 15,856,731.92/3,603.61
  6. Step 6: Final answer
    x = 4,400.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.