Home / 6,290.28-8,679.60-3,495.78

Finding the Fourth Proportional to 6,290.28, 8,679.60 and 3,495.78

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Solution

The fourth proportional to 6,290.28, 8,679.60 and 3,495.78 is: 4,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.28 : 8,679.60 = 3,495.78 : x
  2. Step 2: Convert to fraction form
    6,290.28/8,679.60 = 3,495.78/x
  3. Step 3: Cross multiply
    6,290.28x = 8,679.60 × 3,495.78
  4. Step 4: Simplify right side
    6,290.28x = 30,341,972.09
  5. Step 5: Solve for x
    x = 30,341,972.09/6,290.28
  6. Step 6: Final answer
    x = 4,823.63

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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.