Home / 4,988.74-6,878.37-3,122.50

Finding the Fourth Proportional to 4,988.74, 6,878.37 and 3,122.50

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Solution

The fourth proportional to 4,988.74, 6,878.37 and 3,122.50 is: 4,305.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.74 : 6,878.37 = 3,122.50 : x
  2. Step 2: Convert to fraction form
    4,988.74/6,878.37 = 3,122.50/x
  3. Step 3: Cross multiply
    4,988.74x = 6,878.37 × 3,122.50
  4. Step 4: Simplify right side
    4,988.74x = 21,477,710.33
  5. Step 5: Solve for x
    x = 21,477,710.33/4,988.74
  6. Step 6: Final answer
    x = 4,305.24

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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.