Home / 6,418.35-8,855.73-3,585.78

Finding the Fourth Proportional to 6,418.35, 8,855.73 and 3,585.78

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Solution

The fourth proportional to 6,418.35, 8,855.73 and 3,585.78 is: 4,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.35 : 8,855.73 = 3,585.78 : x
  2. Step 2: Convert to fraction form
    6,418.35/8,855.73 = 3,585.78/x
  3. Step 3: Cross multiply
    6,418.35x = 8,855.73 × 3,585.78
  4. Step 4: Simplify right side
    6,418.35x = 31,754,699.52
  5. Step 5: Solve for x
    x = 31,754,699.52/6,418.35
  6. Step 6: Final answer
    x = 4,947.49

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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.