Home / 3,915.39-5,872.45-1,282.87

Finding the Fourth Proportional to 3,915.39, 5,872.45 and 1,282.87

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Solution

The fourth proportional to 3,915.39, 5,872.45 and 1,282.87 is: 1,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.39 : 5,872.45 = 1,282.87 : x
  2. Step 2: Convert to fraction form
    3,915.39/5,872.45 = 1,282.87/x
  3. Step 3: Cross multiply
    3,915.39x = 5,872.45 × 1,282.87
  4. Step 4: Simplify right side
    3,915.39x = 7,533,589.93
  5. Step 5: Solve for x
    x = 7,533,589.93/3,915.39
  6. Step 6: Final answer
    x = 1,924.10

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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.