Home / 3,801.74-5,685.53-2,912.49

Finding the Fourth Proportional to 3,801.74, 5,685.53 and 2,912.49

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Solution

The fourth proportional to 3,801.74, 5,685.53 and 2,912.49 is: 4,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.74 : 5,685.53 = 2,912.49 : x
  2. Step 2: Convert to fraction form
    3,801.74/5,685.53 = 2,912.49/x
  3. Step 3: Cross multiply
    3,801.74x = 5,685.53 × 2,912.49
  4. Step 4: Simplify right side
    3,801.74x = 16,559,034.71
  5. Step 5: Solve for x
    x = 16,559,034.71/3,801.74
  6. Step 6: Final answer
    x = 4,355.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.