Home / 3,619.60-4,994.38-2,127.58

Finding the Fourth Proportional to 3,619.60, 4,994.38 and 2,127.58

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Solution

The fourth proportional to 3,619.60, 4,994.38 and 2,127.58 is: 2,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.60 : 4,994.38 = 2,127.58 : x
  2. Step 2: Convert to fraction form
    3,619.60/4,994.38 = 2,127.58/x
  3. Step 3: Cross multiply
    3,619.60x = 4,994.38 × 2,127.58
  4. Step 4: Simplify right side
    3,619.60x = 10,625,943.00
  5. Step 5: Solve for x
    x = 10,625,943.00/3,619.60
  6. Step 6: Final answer
    x = 2,935.67

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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.