Home / 3,915.15-5,873.68-1,282.80

Finding the Fourth Proportional to 3,915.15, 5,873.68 and 1,282.80

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Solution

The fourth proportional to 3,915.15, 5,873.68 and 1,282.80 is: 1,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.15 : 5,873.68 = 1,282.80 : x
  2. Step 2: Convert to fraction form
    3,915.15/5,873.68 = 1,282.80/x
  3. Step 3: Cross multiply
    3,915.15x = 5,873.68 × 1,282.80
  4. Step 4: Simplify right side
    3,915.15x = 7,534,727.34
  5. Step 5: Solve for x
    x = 7,534,727.34/3,915.15
  6. Step 6: Final answer
    x = 1,924.51

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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.