Home / 3,124.83-4,308.35-2,003.79

Finding the Fourth Proportional to 3,124.83, 4,308.35 and 2,003.79

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Solution

The fourth proportional to 3,124.83, 4,308.35 and 2,003.79 is: 2,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.83 : 4,308.35 = 2,003.79 : x
  2. Step 2: Convert to fraction form
    3,124.83/4,308.35 = 2,003.79/x
  3. Step 3: Cross multiply
    3,124.83x = 4,308.35 × 2,003.79
  4. Step 4: Simplify right side
    3,124.83x = 8,633,018.63
  5. Step 5: Solve for x
    x = 8,633,018.63/3,124.83
  6. Step 6: Final answer
    x = 2,762.72

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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.