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Finding the Fourth Proportional to 4,409.80, 6,618.30 and 4,265.80

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Solution

The fourth proportional to 4,409.80, 6,618.30 and 4,265.80 is: 6,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.80 : 6,618.30 = 4,265.80 : x
  2. Step 2: Convert to fraction form
    4,409.80/6,618.30 = 4,265.80/x
  3. Step 3: Cross multiply
    4,409.80x = 6,618.30 × 4,265.80
  4. Step 4: Simplify right side
    4,409.80x = 28,232,344.14
  5. Step 5: Solve for x
    x = 28,232,344.14/4,409.80
  6. Step 6: Final answer
    x = 6,402.18

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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.