Home / 1,612.64-2,421-1,342.04

Finding the Fourth Proportional to 1,612.64, 2,421 and 1,342.04

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Solution

The fourth proportional to 1,612.64, 2,421 and 1,342.04 is: 2,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.64 : 2,421 = 1,342.04 : x
  2. Step 2: Convert to fraction form
    1,612.64/2,421 = 1,342.04/x
  3. Step 3: Cross multiply
    1,612.64x = 2,421 × 1,342.04
  4. Step 4: Simplify right side
    1,612.64x = 3,249,078.84
  5. Step 5: Solve for x
    x = 3,249,078.84/1,612.64
  6. Step 6: Final answer
    x = 2,014.76

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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.