Home / 3,898.52-5,374.85-2,887.03

Finding the Fourth Proportional to 3,898.52, 5,374.85 and 2,887.03

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Solution

The fourth proportional to 3,898.52, 5,374.85 and 2,887.03 is: 3,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.52 : 5,374.85 = 2,887.03 : x
  2. Step 2: Convert to fraction form
    3,898.52/5,374.85 = 2,887.03/x
  3. Step 3: Cross multiply
    3,898.52x = 5,374.85 × 2,887.03
  4. Step 4: Simplify right side
    3,898.52x = 15,517,353.20
  5. Step 5: Solve for x
    x = 15,517,353.20/3,898.52
  6. Step 6: Final answer
    x = 3,980.32

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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.