Home / 1,630.86-2,247.93-1,276.19

Finding the Fourth Proportional to 1,630.86, 2,247.93 and 1,276.19

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Solution

The fourth proportional to 1,630.86, 2,247.93 and 1,276.19 is: 1,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.86 : 2,247.93 = 1,276.19 : x
  2. Step 2: Convert to fraction form
    1,630.86/2,247.93 = 1,276.19/x
  3. Step 3: Cross multiply
    1,630.86x = 2,247.93 × 1,276.19
  4. Step 4: Simplify right side
    1,630.86x = 2,868,785.79
  5. Step 5: Solve for x
    x = 2,868,785.79/1,630.86
  6. Step 6: Final answer
    x = 1,759.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.