Home / 5,898.24-8,136.96-3,909.12

Finding the Fourth Proportional to 5,898.24, 8,136.96 and 3,909.12

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Solution

The fourth proportional to 5,898.24, 8,136.96 and 3,909.12 is: 5,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898.24 : 8,136.96 = 3,909.12 : x
  2. Step 2: Convert to fraction form
    5,898.24/8,136.96 = 3,909.12/x
  3. Step 3: Cross multiply
    5,898.24x = 8,136.96 × 3,909.12
  4. Step 4: Simplify right side
    5,898.24x = 31,808,353.08
  5. Step 5: Solve for x
    x = 31,808,353.08/5,898.24
  6. Step 6: Final answer
    x = 5,392.86

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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.