Home / 5,180.02-7,771.11-1,670.29

Finding the Fourth Proportional to 5,180.02, 7,771.11 and 1,670.29

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Solution

The fourth proportional to 5,180.02, 7,771.11 and 1,670.29 is: 2,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.02 : 7,771.11 = 1,670.29 : x
  2. Step 2: Convert to fraction form
    5,180.02/7,771.11 = 1,670.29/x
  3. Step 3: Cross multiply
    5,180.02x = 7,771.11 × 1,670.29
  4. Step 4: Simplify right side
    5,180.02x = 12,980,007.32
  5. Step 5: Solve for x
    x = 12,980,007.32/5,180.02
  6. Step 6: Final answer
    x = 2,505.78

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1.5x scale

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.