Home / 4,331.70-5,976.15-2,840.45

Finding the Fourth Proportional to 4,331.70, 5,976.15 and 2,840.45

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Solution

The fourth proportional to 4,331.70, 5,976.15 and 2,840.45 is: 3,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.70 : 5,976.15 = 2,840.45 : x
  2. Step 2: Convert to fraction form
    4,331.70/5,976.15 = 2,840.45/x
  3. Step 3: Cross multiply
    4,331.70x = 5,976.15 × 2,840.45
  4. Step 4: Simplify right side
    4,331.70x = 16,974,914.74
  5. Step 5: Solve for x
    x = 16,974,914.74/4,331.70
  6. Step 6: Final answer
    x = 3,918.77

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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.