Home / 3,925.12-5,887.56-1,328.08

Finding the Fourth Proportional to 3,925.12, 5,887.56 and 1,328.08

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Solution

The fourth proportional to 3,925.12, 5,887.56 and 1,328.08 is: 1,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.12 : 5,887.56 = 1,328.08 : x
  2. Step 2: Convert to fraction form
    3,925.12/5,887.56 = 1,328.08/x
  3. Step 3: Cross multiply
    3,925.12x = 5,887.56 × 1,328.08
  4. Step 4: Simplify right side
    3,925.12x = 7,819,150.68
  5. Step 5: Solve for x
    x = 7,819,150.68/3,925.12
  6. Step 6: Final answer
    x = 1,992.08

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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.