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Finding the Fourth Proportional to 3,002.11, 4,503.12 and 811.06

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Solution

The fourth proportional to 3,002.11, 4,503.12 and 811.06 is: 1,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.11 : 4,503.12 = 811.06 : x
  2. Step 2: Convert to fraction form
    3,002.11/4,503.12 = 811.06/x
  3. Step 3: Cross multiply
    3,002.11x = 4,503.12 × 811.06
  4. Step 4: Simplify right side
    3,002.11x = 3,652,300.51
  5. Step 5: Solve for x
    x = 3,652,300.51/3,002.11
  6. Step 6: Final answer
    x = 1,216.58

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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.