Home / 4,378.58-6,042.18-2,489.90

Finding the Fourth Proportional to 4,378.58, 6,042.18 and 2,489.90

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Solution

The fourth proportional to 4,378.58, 6,042.18 and 2,489.90 is: 3,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.58 : 6,042.18 = 2,489.90 : x
  2. Step 2: Convert to fraction form
    4,378.58/6,042.18 = 2,489.90/x
  3. Step 3: Cross multiply
    4,378.58x = 6,042.18 × 2,489.90
  4. Step 4: Simplify right side
    4,378.58x = 15,044,393.77
  5. Step 5: Solve for x
    x = 15,044,393.77/4,378.58
  6. Step 6: Final answer
    x = 3,435.91

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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.