Home / 1,457.36-2,179.92-1,277.36

Finding the Fourth Proportional to 1,457.36, 2,179.92 and 1,277.36

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Solution

The fourth proportional to 1,457.36, 2,179.92 and 1,277.36 is: 1,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.36 : 2,179.92 = 1,277.36 : x
  2. Step 2: Convert to fraction form
    1,457.36/2,179.92 = 1,277.36/x
  3. Step 3: Cross multiply
    1,457.36x = 2,179.92 × 1,277.36
  4. Step 4: Simplify right side
    1,457.36x = 2,784,542.61
  5. Step 5: Solve for x
    x = 2,784,542.61/1,457.36
  6. Step 6: Final answer
    x = 1,910.68

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1.5x scale

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.