Home / 2,639.21-3,642.08-1,444.16

Finding the Fourth Proportional to 2,639.21, 3,642.08 and 1,444.16

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Solution

The fourth proportional to 2,639.21, 3,642.08 and 1,444.16 is: 1,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.21 : 3,642.08 = 1,444.16 : x
  2. Step 2: Convert to fraction form
    2,639.21/3,642.08 = 1,444.16/x
  3. Step 3: Cross multiply
    2,639.21x = 3,642.08 × 1,444.16
  4. Step 4: Simplify right side
    2,639.21x = 5,259,748.14
  5. Step 5: Solve for x
    x = 5,259,748.14/2,639.21
  6. Step 6: Final answer
    x = 1,992.93

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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.