Home / 6,553.85-9,043.53-3,720.20

Finding the Fourth Proportional to 6,553.85, 9,043.53 and 3,720.20

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Solution

The fourth proportional to 6,553.85, 9,043.53 and 3,720.20 is: 5,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.85 : 9,043.53 = 3,720.20 : x
  2. Step 2: Convert to fraction form
    6,553.85/9,043.53 = 3,720.20/x
  3. Step 3: Cross multiply
    6,553.85x = 9,043.53 × 3,720.20
  4. Step 4: Simplify right side
    6,553.85x = 33,643,740.31
  5. Step 5: Solve for x
    x = 33,643,740.31/6,553.85
  6. Step 6: Final answer
    x = 5,133.43

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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.