Home / 2,645.61-3,969.36-1,607.73

Finding the Fourth Proportional to 2,645.61, 3,969.36 and 1,607.73

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Solution

The fourth proportional to 2,645.61, 3,969.36 and 1,607.73 is: 2,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.61 : 3,969.36 = 1,607.73 : x
  2. Step 2: Convert to fraction form
    2,645.61/3,969.36 = 1,607.73/x
  3. Step 3: Cross multiply
    2,645.61x = 3,969.36 × 1,607.73
  4. Step 4: Simplify right side
    2,645.61x = 6,381,659.15
  5. Step 5: Solve for x
    x = 6,381,659.15/2,645.61
  6. Step 6: Final answer
    x = 2,412.17

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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.