Home / 2,615.32-3,924.21-1,642.12

Finding the Fourth Proportional to 2,615.32, 3,924.21 and 1,642.12

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Solution

The fourth proportional to 2,615.32, 3,924.21 and 1,642.12 is: 2,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.32 : 3,924.21 = 1,642.12 : x
  2. Step 2: Convert to fraction form
    2,615.32/3,924.21 = 1,642.12/x
  3. Step 3: Cross multiply
    2,615.32x = 3,924.21 × 1,642.12
  4. Step 4: Simplify right side
    2,615.32x = 6,444,023.73
  5. Step 5: Solve for x
    x = 6,444,023.73/2,615.32
  6. Step 6: Final answer
    x = 2,463.95

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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.