Home / 4,984.75-6,878.96-2,890.09

Finding the Fourth Proportional to 4,984.75, 6,878.96 and 2,890.09

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Solution

The fourth proportional to 4,984.75, 6,878.96 and 2,890.09 is: 3,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.75 : 6,878.96 = 2,890.09 : x
  2. Step 2: Convert to fraction form
    4,984.75/6,878.96 = 2,890.09/x
  3. Step 3: Cross multiply
    4,984.75x = 6,878.96 × 2,890.09
  4. Step 4: Simplify right side
    4,984.75x = 19,880,813.51
  5. Step 5: Solve for x
    x = 19,880,813.51/4,984.75
  6. Step 6: Final answer
    x = 3,988.33

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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.