Home / 4,378.30-6,042.07-2,489.84

Finding the Fourth Proportional to 4,378.30, 6,042.07 and 2,489.84

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Solution

The fourth proportional to 4,378.30, 6,042.07 and 2,489.84 is: 3,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.30 : 6,042.07 = 2,489.84 : x
  2. Step 2: Convert to fraction form
    4,378.30/6,042.07 = 2,489.84/x
  3. Step 3: Cross multiply
    4,378.30x = 6,042.07 × 2,489.84
  4. Step 4: Simplify right side
    4,378.30x = 15,043,776.13
  5. Step 5: Solve for x
    x = 15,043,776.13/4,378.30
  6. Step 6: Final answer
    x = 3,435.98

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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.