Home / 2,525.28-3,780.93-1,290.03

Finding the Fourth Proportional to 2,525.28, 3,780.93 and 1,290.03

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Solution

The fourth proportional to 2,525.28, 3,780.93 and 1,290.03 is: 1,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.28 : 3,780.93 = 1,290.03 : x
  2. Step 2: Convert to fraction form
    2,525.28/3,780.93 = 1,290.03/x
  3. Step 3: Cross multiply
    2,525.28x = 3,780.93 × 1,290.03
  4. Step 4: Simplify right side
    2,525.28x = 4,877,517.97
  5. Step 5: Solve for x
    x = 4,877,517.97/2,525.28
  6. Step 6: Final answer
    x = 1,931.48

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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.