Home / 5,746.15-7,929.48-3,511.78

Finding the Fourth Proportional to 5,746.15, 7,929.48 and 3,511.78

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Solution

The fourth proportional to 5,746.15, 7,929.48 and 3,511.78 is: 4,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,746.15 : 7,929.48 = 3,511.78 : x
  2. Step 2: Convert to fraction form
    5,746.15/7,929.48 = 3,511.78/x
  3. Step 3: Cross multiply
    5,746.15x = 7,929.48 × 3,511.78
  4. Step 4: Simplify right side
    5,746.15x = 27,846,589.27
  5. Step 5: Solve for x
    x = 27,846,589.27/5,746.15
  6. Step 6: Final answer
    x = 4,846.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.