Home / 3,157.92-4,730.40-1,855.44

Finding the Fourth Proportional to 3,157.92, 4,730.40 and 1,855.44

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Solution

The fourth proportional to 3,157.92, 4,730.40 and 1,855.44 is: 2,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.92 : 4,730.40 = 1,855.44 : x
  2. Step 2: Convert to fraction form
    3,157.92/4,730.40 = 1,855.44/x
  3. Step 3: Cross multiply
    3,157.92x = 4,730.40 × 1,855.44
  4. Step 4: Simplify right side
    3,157.92x = 8,776,973.38
  5. Step 5: Solve for x
    x = 8,776,973.38/3,157.92
  6. Step 6: Final answer
    x = 2,779.35

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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.