Home / 4,145.52-5,722.08-2,378.28

Finding the Fourth Proportional to 4,145.52, 5,722.08 and 2,378.28

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Solution

The fourth proportional to 4,145.52, 5,722.08 and 2,378.28 is: 3,282.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.52 : 5,722.08 = 2,378.28 : x
  2. Step 2: Convert to fraction form
    4,145.52/5,722.08 = 2,378.28/x
  3. Step 3: Cross multiply
    4,145.52x = 5,722.08 × 2,378.28
  4. Step 4: Simplify right side
    4,145.52x = 13,608,708.42
  5. Step 5: Solve for x
    x = 13,608,708.42/4,145.52
  6. Step 6: Final answer
    x = 3,282.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.