Home / 5,197.42-7,172.58-3,102.76

Finding the Fourth Proportional to 5,197.42, 7,172.58 and 3,102.76

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Solution

The fourth proportional to 5,197.42, 7,172.58 and 3,102.76 is: 4,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.42 : 7,172.58 = 3,102.76 : x
  2. Step 2: Convert to fraction form
    5,197.42/7,172.58 = 3,102.76/x
  3. Step 3: Cross multiply
    5,197.42x = 7,172.58 × 3,102.76
  4. Step 4: Simplify right side
    5,197.42x = 22,254,794.32
  5. Step 5: Solve for x
    x = 22,254,794.32/5,197.42
  6. Step 6: Final answer
    x = 4,281.89

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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.