Home / 2,615.28-3,922.91-1,642.06

Finding the Fourth Proportional to 2,615.28, 3,922.91 and 1,642.06

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Solution

The fourth proportional to 2,615.28, 3,922.91 and 1,642.06 is: 2,463.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.28 : 3,922.91 = 1,642.06 : x
  2. Step 2: Convert to fraction form
    2,615.28/3,922.91 = 1,642.06/x
  3. Step 3: Cross multiply
    2,615.28x = 3,922.91 × 1,642.06
  4. Step 4: Simplify right side
    2,615.28x = 6,441,656.45
  5. Step 5: Solve for x
    x = 6,441,656.45/2,615.28
  6. Step 6: Final answer
    x = 2,463.09

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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.