Home / 3,905.76-5,389.44-2,333.52

Finding the Fourth Proportional to 3,905.76, 5,389.44 and 2,333.52

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Solution

The fourth proportional to 3,905.76, 5,389.44 and 2,333.52 is: 3,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.76 : 5,389.44 = 2,333.52 : x
  2. Step 2: Convert to fraction form
    3,905.76/5,389.44 = 2,333.52/x
  3. Step 3: Cross multiply
    3,905.76x = 5,389.44 × 2,333.52
  4. Step 4: Simplify right side
    3,905.76x = 12,576,366.03
  5. Step 5: Solve for x
    x = 12,576,366.03/3,905.76
  6. Step 6: Final answer
    x = 3,219.95

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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.