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Finding the Fourth Proportional to 4,602.42, 6,918.21 and 3,960.90

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Solution

The fourth proportional to 4,602.42, 6,918.21 and 3,960.90 is: 5,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,602.42 : 6,918.21 = 3,960.90 : x
  2. Step 2: Convert to fraction form
    4,602.42/6,918.21 = 3,960.90/x
  3. Step 3: Cross multiply
    4,602.42x = 6,918.21 × 3,960.90
  4. Step 4: Simplify right side
    4,602.42x = 27,402,337.99
  5. Step 5: Solve for x
    x = 27,402,337.99/4,602.42
  6. Step 6: Final answer
    x = 5,953.90

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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.