Home / 4,090.60-6,136.62-1,317.88

Finding the Fourth Proportional to 4,090.60, 6,136.62 and 1,317.88

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Solution

The fourth proportional to 4,090.60, 6,136.62 and 1,317.88 is: 1,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.60 : 6,136.62 = 1,317.88 : x
  2. Step 2: Convert to fraction form
    4,090.60/6,136.62 = 1,317.88/x
  3. Step 3: Cross multiply
    4,090.60x = 6,136.62 × 1,317.88
  4. Step 4: Simplify right side
    4,090.60x = 8,087,328.77
  5. Step 5: Solve for x
    x = 8,087,328.77/4,090.60
  6. Step 6: Final answer
    x = 1,977.05

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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.