Home / 5,171.02-7,129.34-3,756.76

Finding the Fourth Proportional to 5,171.02, 7,129.34 and 3,756.76

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Solution

The fourth proportional to 5,171.02, 7,129.34 and 3,756.76 is: 5,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.02 : 7,129.34 = 3,756.76 : x
  2. Step 2: Convert to fraction form
    5,171.02/7,129.34 = 3,756.76/x
  3. Step 3: Cross multiply
    5,171.02x = 7,129.34 × 3,756.76
  4. Step 4: Simplify right side
    5,171.02x = 26,783,219.34
  5. Step 5: Solve for x
    x = 26,783,219.34/5,171.02
  6. Step 6: Final answer
    x = 5,179.48

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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.