Home / 4,631.79-6,390.84-2,742.42

Finding the Fourth Proportional to 4,631.79, 6,390.84 and 2,742.42

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Solution

The fourth proportional to 4,631.79, 6,390.84 and 2,742.42 is: 3,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.79 : 6,390.84 = 2,742.42 : x
  2. Step 2: Convert to fraction form
    4,631.79/6,390.84 = 2,742.42/x
  3. Step 3: Cross multiply
    4,631.79x = 6,390.84 × 2,742.42
  4. Step 4: Simplify right side
    4,631.79x = 17,526,367.43
  5. Step 5: Solve for x
    x = 17,526,367.43/4,631.79
  6. Step 6: Final answer
    x = 3,783.93

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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.