Home / 1,256.08-1,733.88-1,222.96

Finding the Fourth Proportional to 1,256.08, 1,733.88 and 1,222.96

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Solution

The fourth proportional to 1,256.08, 1,733.88 and 1,222.96 is: 1,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.08 : 1,733.88 = 1,222.96 : x
  2. Step 2: Convert to fraction form
    1,256.08/1,733.88 = 1,222.96/x
  3. Step 3: Cross multiply
    1,256.08x = 1,733.88 × 1,222.96
  4. Step 4: Simplify right side
    1,256.08x = 2,120,465.88
  5. Step 5: Solve for x
    x = 2,120,465.88/1,256.08
  6. Step 6: Final answer
    x = 1,688.16

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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.