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Finding the Fourth Proportional to 5,453.66, 7,528.36 and 3,687.66

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Solution

The fourth proportional to 5,453.66, 7,528.36 and 3,687.66 is: 5,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.66 : 7,528.36 = 3,687.66 : x
  2. Step 2: Convert to fraction form
    5,453.66/7,528.36 = 3,687.66/x
  3. Step 3: Cross multiply
    5,453.66x = 7,528.36 × 3,687.66
  4. Step 4: Simplify right side
    5,453.66x = 27,762,032.04
  5. Step 5: Solve for x
    x = 27,762,032.04/5,453.66
  6. Step 6: Final answer
    x = 5,090.53

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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.