Home / 3,486.45-4,811.52-1,914.55

Finding the Fourth Proportional to 3,486.45, 4,811.52 and 1,914.55

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Solution

The fourth proportional to 3,486.45, 4,811.52 and 1,914.55 is: 2,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.45 : 4,811.52 = 1,914.55 : x
  2. Step 2: Convert to fraction form
    3,486.45/4,811.52 = 1,914.55/x
  3. Step 3: Cross multiply
    3,486.45x = 4,811.52 × 1,914.55
  4. Step 4: Simplify right side
    3,486.45x = 9,211,890.77
  5. Step 5: Solve for x
    x = 9,211,890.77/3,486.45
  6. Step 6: Final answer
    x = 2,642.20

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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.