Home / 2,525.07-3,785.90-1,291.47

Finding the Fourth Proportional to 2,525.07, 3,785.90 and 1,291.47

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Solution

The fourth proportional to 2,525.07, 3,785.90 and 1,291.47 is: 1,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.07 : 3,785.90 = 1,291.47 : x
  2. Step 2: Convert to fraction form
    2,525.07/3,785.90 = 1,291.47/x
  3. Step 3: Cross multiply
    2,525.07x = 3,785.90 × 1,291.47
  4. Step 4: Simplify right side
    2,525.07x = 4,889,369.82
  5. Step 5: Solve for x
    x = 4,889,369.82/2,525.07
  6. Step 6: Final answer
    x = 1,936.33

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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.