Home / 3,875.37-5,347.77-2,173.78

Finding the Fourth Proportional to 3,875.37, 5,347.77 and 2,173.78

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Solution

The fourth proportional to 3,875.37, 5,347.77 and 2,173.78 is: 2,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.37 : 5,347.77 = 2,173.78 : x
  2. Step 2: Convert to fraction form
    3,875.37/5,347.77 = 2,173.78/x
  3. Step 3: Cross multiply
    3,875.37x = 5,347.77 × 2,173.78
  4. Step 4: Simplify right side
    3,875.37x = 11,624,900.33
  5. Step 5: Solve for x
    x = 11,624,900.33/3,875.37
  6. Step 6: Final answer
    x = 2,999.69

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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.