Home / 3,261.08-4,887.48-2,148.32

Finding the Fourth Proportional to 3,261.08, 4,887.48 and 2,148.32

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Solution

The fourth proportional to 3,261.08, 4,887.48 and 2,148.32 is: 3,219.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.08 : 4,887.48 = 2,148.32 : x
  2. Step 2: Convert to fraction form
    3,261.08/4,887.48 = 2,148.32/x
  3. Step 3: Cross multiply
    3,261.08x = 4,887.48 × 2,148.32
  4. Step 4: Simplify right side
    3,261.08x = 10,499,871.03
  5. Step 5: Solve for x
    x = 10,499,871.03/3,261.08
  6. Step 6: Final answer
    x = 3,219.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.