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Finding the Fourth Proportional to 4,782.71, 6,600.22 and 2,686.84

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Solution

The fourth proportional to 4,782.71, 6,600.22 and 2,686.84 is: 3,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.71 : 6,600.22 = 2,686.84 : x
  2. Step 2: Convert to fraction form
    4,782.71/6,600.22 = 2,686.84/x
  3. Step 3: Cross multiply
    4,782.71x = 6,600.22 × 2,686.84
  4. Step 4: Simplify right side
    4,782.71x = 17,733,711.89
  5. Step 5: Solve for x
    x = 17,733,711.89/4,782.71
  6. Step 6: Final answer
    x = 3,707.88

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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.