Home / 4,081.08-6,120.64-1,887.70

Finding the Fourth Proportional to 4,081.08, 6,120.64 and 1,887.70

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Solution

The fourth proportional to 4,081.08, 6,120.64 and 1,887.70 is: 2,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.08 : 6,120.64 = 1,887.70 : x
  2. Step 2: Convert to fraction form
    4,081.08/6,120.64 = 1,887.70/x
  3. Step 3: Cross multiply
    4,081.08x = 6,120.64 × 1,887.70
  4. Step 4: Simplify right side
    4,081.08x = 11,553,932.13
  5. Step 5: Solve for x
    x = 11,553,932.13/4,081.08
  6. Step 6: Final answer
    x = 2,831.10

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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.