Home / 1,451.29-2,167.64-1,256.89

Finding the Fourth Proportional to 1,451.29, 2,167.64 and 1,256.89

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Solution

The fourth proportional to 1,451.29, 2,167.64 and 1,256.89 is: 1,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.29 : 2,167.64 = 1,256.89 : x
  2. Step 2: Convert to fraction form
    1,451.29/2,167.64 = 1,256.89/x
  3. Step 3: Cross multiply
    1,451.29x = 2,167.64 × 1,256.89
  4. Step 4: Simplify right side
    1,451.29x = 2,724,485.04
  5. Step 5: Solve for x
    x = 2,724,485.04/1,451.29
  6. Step 6: Final answer
    x = 1,877.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.