Home / 5,453.60-7,528.28-3,687.60

Finding the Fourth Proportional to 5,453.60, 7,528.28 and 3,687.60

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Solution

The fourth proportional to 5,453.60, 7,528.28 and 3,687.60 is: 5,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.60 : 7,528.28 = 3,687.60 : x
  2. Step 2: Convert to fraction form
    5,453.60/7,528.28 = 3,687.60/x
  3. Step 3: Cross multiply
    5,453.60x = 7,528.28 × 3,687.60
  4. Step 4: Simplify right side
    5,453.60x = 27,761,285.33
  5. Step 5: Solve for x
    x = 27,761,285.33/5,453.60
  6. Step 6: Final answer
    x = 5,090.45

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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.