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Finding the Fourth Proportional to 5,003.55, 7,502.79 and 1,670.62

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Solution

The fourth proportional to 5,003.55, 7,502.79 and 1,670.62 is: 2,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.55 : 7,502.79 = 1,670.62 : x
  2. Step 2: Convert to fraction form
    5,003.55/7,502.79 = 1,670.62/x
  3. Step 3: Cross multiply
    5,003.55x = 7,502.79 × 1,670.62
  4. Step 4: Simplify right side
    5,003.55x = 12,534,311.03
  5. Step 5: Solve for x
    x = 12,534,311.03/5,003.55
  6. Step 6: Final answer
    x = 2,505.08

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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.