Home / 5,696.42-7,859.21-3,178.13

Finding the Fourth Proportional to 5,696.42, 7,859.21 and 3,178.13

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Solution

The fourth proportional to 5,696.42, 7,859.21 and 3,178.13 is: 4,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,696.42 : 7,859.21 = 3,178.13 : x
  2. Step 2: Convert to fraction form
    5,696.42/7,859.21 = 3,178.13/x
  3. Step 3: Cross multiply
    5,696.42x = 7,859.21 × 3,178.13
  4. Step 4: Simplify right side
    5,696.42x = 24,977,535.89
  5. Step 5: Solve for x
    x = 24,977,535.89/5,696.42
  6. Step 6: Final answer
    x = 4,384.78

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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.