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Finding the Fourth Proportional to 3,621.69, 5,430.69 and 2,451.69

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Solution

The fourth proportional to 3,621.69, 5,430.69 and 2,451.69 is: 3,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.69 : 5,430.69 = 2,451.69 : x
  2. Step 2: Convert to fraction form
    3,621.69/5,430.69 = 2,451.69/x
  3. Step 3: Cross multiply
    3,621.69x = 5,430.69 × 2,451.69
  4. Step 4: Simplify right side
    3,621.69x = 13,314,368.37
  5. Step 5: Solve for x
    x = 13,314,368.37/3,621.69
  6. Step 6: Final answer
    x = 3,676.29

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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.