Home / 2,628.40-3,603.65-2,581.57

Finding the Fourth Proportional to 2,628.40, 3,603.65 and 2,581.57

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Solution

The fourth proportional to 2,628.40, 3,603.65 and 2,581.57 is: 3,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.40 : 3,603.65 = 2,581.57 : x
  2. Step 2: Convert to fraction form
    2,628.40/3,603.65 = 2,581.57/x
  3. Step 3: Cross multiply
    2,628.40x = 3,603.65 × 2,581.57
  4. Step 4: Simplify right side
    2,628.40x = 9,303,074.73
  5. Step 5: Solve for x
    x = 9,303,074.73/2,628.40
  6. Step 6: Final answer
    x = 3,539.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.