Home / 2,525.25-3,484.85-1,421.25

Finding the Fourth Proportional to 2,525.25, 3,484.85 and 1,421.25

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Solution

The fourth proportional to 2,525.25, 3,484.85 and 1,421.25 is: 1,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.25 : 3,484.85 = 1,421.25 : x
  2. Step 2: Convert to fraction form
    2,525.25/3,484.85 = 1,421.25/x
  3. Step 3: Cross multiply
    2,525.25x = 3,484.85 × 1,421.25
  4. Step 4: Simplify right side
    2,525.25x = 4,952,843.06
  5. Step 5: Solve for x
    x = 4,952,843.06/2,525.25
  6. Step 6: Final answer
    x = 1,961.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.