Home / 4,918.84-7,379.58-2,145.74

Finding the Fourth Proportional to 4,918.84, 7,379.58 and 2,145.74

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Solution

The fourth proportional to 4,918.84, 7,379.58 and 2,145.74 is: 3,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.84 : 7,379.58 = 2,145.74 : x
  2. Step 2: Convert to fraction form
    4,918.84/7,379.58 = 2,145.74/x
  3. Step 3: Cross multiply
    4,918.84x = 7,379.58 × 2,145.74
  4. Step 4: Simplify right side
    4,918.84x = 15,834,659.99
  5. Step 5: Solve for x
    x = 15,834,659.99/4,918.84
  6. Step 6: Final answer
    x = 3,219.19

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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.