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Finding the Fourth Proportional to 5,494.36, 7,582.02 and 3,136.40

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Solution

The fourth proportional to 5,494.36, 7,582.02 and 3,136.40 is: 4,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,494.36 : 7,582.02 = 3,136.40 : x
  2. Step 2: Convert to fraction form
    5,494.36/7,582.02 = 3,136.40/x
  3. Step 3: Cross multiply
    5,494.36x = 7,582.02 × 3,136.40
  4. Step 4: Simplify right side
    5,494.36x = 23,780,231.85
  5. Step 5: Solve for x
    x = 23,780,231.85/5,494.36
  6. Step 6: Final answer
    x = 4,328.12

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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.