Home / 4,157.40-6,236.12-1,235.76

Finding the Fourth Proportional to 4,157.40, 6,236.12 and 1,235.76

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Solution

The fourth proportional to 4,157.40, 6,236.12 and 1,235.76 is: 1,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,157.40 : 6,236.12 = 1,235.76 : x
  2. Step 2: Convert to fraction form
    4,157.40/6,236.12 = 1,235.76/x
  3. Step 3: Cross multiply
    4,157.40x = 6,236.12 × 1,235.76
  4. Step 4: Simplify right side
    4,157.40x = 7,706,347.65
  5. Step 5: Solve for x
    x = 7,706,347.65/4,157.40
  6. Step 6: Final answer
    x = 1,853.65

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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.