Home / 2,265.58-3,125.82-1,380.45

Finding the Fourth Proportional to 2,265.58, 3,125.82 and 1,380.45

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Solution

The fourth proportional to 2,265.58, 3,125.82 and 1,380.45 is: 1,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.58 : 3,125.82 = 1,380.45 : x
  2. Step 2: Convert to fraction form
    2,265.58/3,125.82 = 1,380.45/x
  3. Step 3: Cross multiply
    2,265.58x = 3,125.82 × 1,380.45
  4. Step 4: Simplify right side
    2,265.58x = 4,315,038.22
  5. Step 5: Solve for x
    x = 4,315,038.22/2,265.58
  6. Step 6: Final answer
    x = 1,904.61

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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.