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Finding the Fourth Proportional to 3,002.67, 4,503.38 and 810.89

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Solution

The fourth proportional to 3,002.67, 4,503.38 and 810.89 is: 1,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.67 : 4,503.38 = 810.89 : x
  2. Step 2: Convert to fraction form
    3,002.67/4,503.38 = 810.89/x
  3. Step 3: Cross multiply
    3,002.67x = 4,503.38 × 810.89
  4. Step 4: Simplify right side
    3,002.67x = 3,651,728.02
  5. Step 5: Solve for x
    x = 3,651,728.02/3,002.67
  6. Step 6: Final answer
    x = 1,216.16

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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.