Home / 5,243.77-7,236.54-2,853.90

Finding the Fourth Proportional to 5,243.77, 7,236.54 and 2,853.90

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Solution

The fourth proportional to 5,243.77, 7,236.54 and 2,853.90 is: 3,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.77 : 7,236.54 = 2,853.90 : x
  2. Step 2: Convert to fraction form
    5,243.77/7,236.54 = 2,853.90/x
  3. Step 3: Cross multiply
    5,243.77x = 7,236.54 × 2,853.90
  4. Step 4: Simplify right side
    5,243.77x = 20,652,361.51
  5. Step 5: Solve for x
    x = 20,652,361.51/5,243.77
  6. Step 6: Final answer
    x = 3,938.46

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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.