Home / 4,719.90-7,057.36-4,306.80

Finding the Fourth Proportional to 4,719.90, 7,057.36 and 4,306.80

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Solution

The fourth proportional to 4,719.90, 7,057.36 and 4,306.80 is: 6,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.90 : 7,057.36 = 4,306.80 : x
  2. Step 2: Convert to fraction form
    4,719.90/7,057.36 = 4,306.80/x
  3. Step 3: Cross multiply
    4,719.90x = 7,057.36 × 4,306.80
  4. Step 4: Simplify right side
    4,719.90x = 30,394,638.05
  5. Step 5: Solve for x
    x = 30,394,638.05/4,719.90
  6. Step 6: Final answer
    x = 6,439.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.