Home / 3,423.04-5,136.60-1,475.20

Finding the Fourth Proportional to 3,423.04, 5,136.60 and 1,475.20

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Solution

The fourth proportional to 3,423.04, 5,136.60 and 1,475.20 is: 2,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.04 : 5,136.60 = 1,475.20 : x
  2. Step 2: Convert to fraction form
    3,423.04/5,136.60 = 1,475.20/x
  3. Step 3: Cross multiply
    3,423.04x = 5,136.60 × 1,475.20
  4. Step 4: Simplify right side
    3,423.04x = 7,577,512.32
  5. Step 5: Solve for x
    x = 7,577,512.32/3,423.04
  6. Step 6: Final answer
    x = 2,213.68

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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.