Home / 1,434.32-2,149.08-1,380.32

Finding the Fourth Proportional to 1,434.32, 2,149.08 and 1,380.32

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Solution

The fourth proportional to 1,434.32, 2,149.08 and 1,380.32 is: 2,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.32 : 2,149.08 = 1,380.32 : x
  2. Step 2: Convert to fraction form
    1,434.32/2,149.08 = 1,380.32/x
  3. Step 3: Cross multiply
    1,434.32x = 2,149.08 × 1,380.32
  4. Step 4: Simplify right side
    1,434.32x = 2,966,418.11
  5. Step 5: Solve for x
    x = 2,966,418.11/1,434.32
  6. Step 6: Final answer
    x = 2,068.17

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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.