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Finding the Fourth Proportional to 4,290.53, 5,918.82 and 2,699.10

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Solution

The fourth proportional to 4,290.53, 5,918.82 and 2,699.10 is: 3,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.53 : 5,918.82 = 2,699.10 : x
  2. Step 2: Convert to fraction form
    4,290.53/5,918.82 = 2,699.10/x
  3. Step 3: Cross multiply
    4,290.53x = 5,918.82 × 2,699.10
  4. Step 4: Simplify right side
    4,290.53x = 15,975,487.06
  5. Step 5: Solve for x
    x = 15,975,487.06/4,290.53
  6. Step 6: Final answer
    x = 3,723.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.