Home / 4,261.40-6,393.62-1,666.20

Finding the Fourth Proportional to 4,261.40, 6,393.62 and 1,666.20

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Solution

The fourth proportional to 4,261.40, 6,393.62 and 1,666.20 is: 2,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.40 : 6,393.62 = 1,666.20 : x
  2. Step 2: Convert to fraction form
    4,261.40/6,393.62 = 1,666.20/x
  3. Step 3: Cross multiply
    4,261.40x = 6,393.62 × 1,666.20
  4. Step 4: Simplify right side
    4,261.40x = 10,653,049.64
  5. Step 5: Solve for x
    x = 10,653,049.64/4,261.40
  6. Step 6: Final answer
    x = 2,499.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.