Home / 2,395.88-3,288.65-2,128.04

Finding the Fourth Proportional to 2,395.88, 3,288.65 and 2,128.04

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Solution

The fourth proportional to 2,395.88, 3,288.65 and 2,128.04 is: 2,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,395.88 : 3,288.65 = 2,128.04 : x
  2. Step 2: Convert to fraction form
    2,395.88/3,288.65 = 2,128.04/x
  3. Step 3: Cross multiply
    2,395.88x = 3,288.65 × 2,128.04
  4. Step 4: Simplify right side
    2,395.88x = 6,998,378.75
  5. Step 5: Solve for x
    x = 6,998,378.75/2,395.88
  6. Step 6: Final answer
    x = 2,921.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.