Home / 3,929.78-5,894.48-1,156.52

Finding the Fourth Proportional to 3,929.78, 5,894.48 and 1,156.52

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Solution

The fourth proportional to 3,929.78, 5,894.48 and 1,156.52 is: 1,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.78 : 5,894.48 = 1,156.52 : x
  2. Step 2: Convert to fraction form
    3,929.78/5,894.48 = 1,156.52/x
  3. Step 3: Cross multiply
    3,929.78x = 5,894.48 × 1,156.52
  4. Step 4: Simplify right side
    3,929.78x = 6,817,084.01
  5. Step 5: Solve for x
    x = 6,817,084.01/3,929.78
  6. Step 6: Final answer
    x = 1,734.72

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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.