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Finding the Fourth Proportional to 4,059.87, 6,090.08 and 1,980.87

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Solution

The fourth proportional to 4,059.87, 6,090.08 and 1,980.87 is: 2,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,059.87 : 6,090.08 = 1,980.87 : x
  2. Step 2: Convert to fraction form
    4,059.87/6,090.08 = 1,980.87/x
  3. Step 3: Cross multiply
    4,059.87x = 6,090.08 × 1,980.87
  4. Step 4: Simplify right side
    4,059.87x = 12,063,646.87
  5. Step 5: Solve for x
    x = 12,063,646.87/4,059.87
  6. Step 6: Final answer
    x = 2,971.44

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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.