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Finding the Fourth Proportional to 6,240, 8,611.26 and 3,445.68

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Solution

The fourth proportional to 6,240, 8,611.26 and 3,445.68 is: 4,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240 : 8,611.26 = 3,445.68 : x
  2. Step 2: Convert to fraction form
    6,240/8,611.26 = 3,445.68/x
  3. Step 3: Cross multiply
    6,240x = 8,611.26 × 3,445.68
  4. Step 4: Simplify right side
    6,240x = 29,671,646.36
  5. Step 5: Solve for x
    x = 29,671,646.36/6,240
  6. Step 6: Final answer
    x = 4,755.07

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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.