Home / 3,856.08-5,784.48-1,259.28

Finding the Fourth Proportional to 3,856.08, 5,784.48 and 1,259.28

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Solution

The fourth proportional to 3,856.08, 5,784.48 and 1,259.28 is: 1,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.08 : 5,784.48 = 1,259.28 : x
  2. Step 2: Convert to fraction form
    3,856.08/5,784.48 = 1,259.28/x
  3. Step 3: Cross multiply
    3,856.08x = 5,784.48 × 1,259.28
  4. Step 4: Simplify right side
    3,856.08x = 7,284,279.97
  5. Step 5: Solve for x
    x = 7,284,279.97/3,856.08
  6. Step 6: Final answer
    x = 1,889.04

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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.