Home / 3,892.86-5,838.08-1,119.72

Finding the Fourth Proportional to 3,892.86, 5,838.08 and 1,119.72

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Solution

The fourth proportional to 3,892.86, 5,838.08 and 1,119.72 is: 1,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.86 : 5,838.08 = 1,119.72 : x
  2. Step 2: Convert to fraction form
    3,892.86/5,838.08 = 1,119.72/x
  3. Step 3: Cross multiply
    3,892.86x = 5,838.08 × 1,119.72
  4. Step 4: Simplify right side
    3,892.86x = 6,537,031.23
  5. Step 5: Solve for x
    x = 6,537,031.23/3,892.86
  6. Step 6: Final answer
    x = 1,679.24

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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.