Home / 3,901.52-5,373.26-3,889.64

Finding the Fourth Proportional to 3,901.52, 5,373.26 and 3,889.64

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Solution

The fourth proportional to 3,901.52, 5,373.26 and 3,889.64 is: 5,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.52 : 5,373.26 = 3,889.64 : x
  2. Step 2: Convert to fraction form
    3,901.52/5,373.26 = 3,889.64/x
  3. Step 3: Cross multiply
    3,901.52x = 5,373.26 × 3,889.64
  4. Step 4: Simplify right side
    3,901.52x = 20,900,047.03
  5. Step 5: Solve for x
    x = 20,900,047.03/3,901.52
  6. Step 6: Final answer
    x = 5,356.90

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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.