Home / 6,865.59-9,474.58-3,721.78

Finding the Fourth Proportional to 6,865.59, 9,474.58 and 3,721.78

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Solution

The fourth proportional to 6,865.59, 9,474.58 and 3,721.78 is: 5,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.59 : 9,474.58 = 3,721.78 : x
  2. Step 2: Convert to fraction form
    6,865.59/9,474.58 = 3,721.78/x
  3. Step 3: Cross multiply
    6,865.59x = 9,474.58 × 3,721.78
  4. Step 4: Simplify right side
    6,865.59x = 35,262,302.35
  5. Step 5: Solve for x
    x = 35,262,302.35/6,865.59
  6. Step 6: Final answer
    x = 5,136.09

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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.