Home / 4,138.52-6,207.60-1,828.40

Finding the Fourth Proportional to 4,138.52, 6,207.60 and 1,828.40

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Solution

The fourth proportional to 4,138.52, 6,207.60 and 1,828.40 is: 2,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.52 : 6,207.60 = 1,828.40 : x
  2. Step 2: Convert to fraction form
    4,138.52/6,207.60 = 1,828.40/x
  3. Step 3: Cross multiply
    4,138.52x = 6,207.60 × 1,828.40
  4. Step 4: Simplify right side
    4,138.52x = 11,349,975.84
  5. Step 5: Solve for x
    x = 11,349,975.84/4,138.52
  6. Step 6: Final answer
    x = 2,742.52

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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.