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Finding the Fourth Proportional to 6,019.92, 9,031.56 and 1,860

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Solution

The fourth proportional to 6,019.92, 9,031.56 and 1,860 is: 2,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,019.92 : 9,031.56 = 1,860 : x
  2. Step 2: Convert to fraction form
    6,019.92/9,031.56 = 1,860/x
  3. Step 3: Cross multiply
    6,019.92x = 9,031.56 × 1,860
  4. Step 4: Simplify right side
    6,019.92x = 16,798,701.60
  5. Step 5: Solve for x
    x = 16,798,701.60/6,019.92
  6. Step 6: Final answer
    x = 2,790.52

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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.