Home / 5,717.58-7,911.78-4,876.92

Finding the Fourth Proportional to 5,717.58, 7,911.78 and 4,876.92

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Solution

The fourth proportional to 5,717.58, 7,911.78 and 4,876.92 is: 6,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.58 : 7,911.78 = 4,876.92 : x
  2. Step 2: Convert to fraction form
    5,717.58/7,911.78 = 4,876.92/x
  3. Step 3: Cross multiply
    5,717.58x = 7,911.78 × 4,876.92
  4. Step 4: Simplify right side
    5,717.58x = 38,585,118.12
  5. Step 5: Solve for x
    x = 38,585,118.12/5,717.58
  6. Step 6: Final answer
    x = 6,748.51

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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.