Home / 3,905.37-5,389.28-2,333.16

Finding the Fourth Proportional to 3,905.37, 5,389.28 and 2,333.16

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Solution

The fourth proportional to 3,905.37, 5,389.28 and 2,333.16 is: 3,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.37 : 5,389.28 = 2,333.16 : x
  2. Step 2: Convert to fraction form
    3,905.37/5,389.28 = 2,333.16/x
  3. Step 3: Cross multiply
    3,905.37x = 5,389.28 × 2,333.16
  4. Step 4: Simplify right side
    3,905.37x = 12,574,054.33
  5. Step 5: Solve for x
    x = 12,574,054.33/3,905.37
  6. Step 6: Final answer
    x = 3,219.68

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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.