Home / 3,186.18-4,778.19-1,625.58

Finding the Fourth Proportional to 3,186.18, 4,778.19 and 1,625.58

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Solution

The fourth proportional to 3,186.18, 4,778.19 and 1,625.58 is: 2,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.18 : 4,778.19 = 1,625.58 : x
  2. Step 2: Convert to fraction form
    3,186.18/4,778.19 = 1,625.58/x
  3. Step 3: Cross multiply
    3,186.18x = 4,778.19 × 1,625.58
  4. Step 4: Simplify right side
    3,186.18x = 7,767,330.10
  5. Step 5: Solve for x
    x = 7,767,330.10/3,186.18
  6. Step 6: Final answer
    x = 2,437.82

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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.