Home / 1,257.92-1,875.39-1,225.94

Finding the Fourth Proportional to 1,257.92, 1,875.39 and 1,225.94

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Solution

The fourth proportional to 1,257.92, 1,875.39 and 1,225.94 is: 1,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.92 : 1,875.39 = 1,225.94 : x
  2. Step 2: Convert to fraction form
    1,257.92/1,875.39 = 1,225.94/x
  3. Step 3: Cross multiply
    1,257.92x = 1,875.39 × 1,225.94
  4. Step 4: Simplify right side
    1,257.92x = 2,299,121.12
  5. Step 5: Solve for x
    x = 2,299,121.12/1,257.92
  6. Step 6: Final answer
    x = 1,827.72

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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.