Home / 6,440.62-8,887.40-3,788.68

Finding the Fourth Proportional to 6,440.62, 8,887.40 and 3,788.68

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Solution

The fourth proportional to 6,440.62, 8,887.40 and 3,788.68 is: 5,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.62 : 8,887.40 = 3,788.68 : x
  2. Step 2: Convert to fraction form
    6,440.62/8,887.40 = 3,788.68/x
  3. Step 3: Cross multiply
    6,440.62x = 8,887.40 × 3,788.68
  4. Step 4: Simplify right side
    6,440.62x = 33,671,514.63
  5. Step 5: Solve for x
    x = 33,671,514.63/6,440.62
  6. Step 6: Final answer
    x = 5,227.99

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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.