Home / 2,365.20-3,257.01-1,618.38

Finding the Fourth Proportional to 2,365.20, 3,257.01 and 1,618.38

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Solution

The fourth proportional to 2,365.20, 3,257.01 and 1,618.38 is: 2,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,365.20 : 3,257.01 = 1,618.38 : x
  2. Step 2: Convert to fraction form
    2,365.20/3,257.01 = 1,618.38/x
  3. Step 3: Cross multiply
    2,365.20x = 3,257.01 × 1,618.38
  4. Step 4: Simplify right side
    2,365.20x = 5,271,079.84
  5. Step 5: Solve for x
    x = 5,271,079.84/2,365.20
  6. Step 6: Final answer
    x = 2,228.60

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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.