Home / 1,455.91-2,179.65-1,305.68

Finding the Fourth Proportional to 1,455.91, 2,179.65 and 1,305.68

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Solution

The fourth proportional to 1,455.91, 2,179.65 and 1,305.68 is: 1,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.91 : 2,179.65 = 1,305.68 : x
  2. Step 2: Convert to fraction form
    1,455.91/2,179.65 = 1,305.68/x
  3. Step 3: Cross multiply
    1,455.91x = 2,179.65 × 1,305.68
  4. Step 4: Simplify right side
    1,455.91x = 2,845,925.41
  5. Step 5: Solve for x
    x = 2,845,925.41/1,455.91
  6. Step 6: Final answer
    x = 1,954.74

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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.