Home / 1,252.63-1,879.62-1,056.70

Finding the Fourth Proportional to 1,252.63, 1,879.62 and 1,056.70

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Solution

The fourth proportional to 1,252.63, 1,879.62 and 1,056.70 is: 1,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.63 : 1,879.62 = 1,056.70 : x
  2. Step 2: Convert to fraction form
    1,252.63/1,879.62 = 1,056.70/x
  3. Step 3: Cross multiply
    1,252.63x = 1,879.62 × 1,056.70
  4. Step 4: Simplify right side
    1,252.63x = 1,986,194.45
  5. Step 5: Solve for x
    x = 1,986,194.45/1,252.63
  6. Step 6: Final answer
    x = 1,585.62

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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.