Home / 3,157.50-4,739.07-1,657.74

Finding the Fourth Proportional to 3,157.50, 4,739.07 and 1,657.74

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Solution

The fourth proportional to 3,157.50, 4,739.07 and 1,657.74 is: 2,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.50 : 4,739.07 = 1,657.74 : x
  2. Step 2: Convert to fraction form
    3,157.50/4,739.07 = 1,657.74/x
  3. Step 3: Cross multiply
    3,157.50x = 4,739.07 × 1,657.74
  4. Step 4: Simplify right side
    3,157.50x = 7,856,145.90
  5. Step 5: Solve for x
    x = 7,856,145.90/3,157.50
  6. Step 6: Final answer
    x = 2,488.09

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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.