Home / 2,600.05-3,587.95-1,605.43

Finding the Fourth Proportional to 2,600.05, 3,587.95 and 1,605.43

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Solution

The fourth proportional to 2,600.05, 3,587.95 and 1,605.43 is: 2,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.05 : 3,587.95 = 1,605.43 : x
  2. Step 2: Convert to fraction form
    2,600.05/3,587.95 = 1,605.43/x
  3. Step 3: Cross multiply
    2,600.05x = 3,587.95 × 1,605.43
  4. Step 4: Simplify right side
    2,600.05x = 5,760,202.57
  5. Step 5: Solve for x
    x = 5,760,202.57/2,600.05
  6. Step 6: Final answer
    x = 2,215.42

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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.