Home / 2,272.34-3,135.87-1,277.69

Finding the Fourth Proportional to 2,272.34, 3,135.87 and 1,277.69

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Solution

The fourth proportional to 2,272.34, 3,135.87 and 1,277.69 is: 1,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.34 : 3,135.87 = 1,277.69 : x
  2. Step 2: Convert to fraction form
    2,272.34/3,135.87 = 1,277.69/x
  3. Step 3: Cross multiply
    2,272.34x = 3,135.87 × 1,277.69
  4. Step 4: Simplify right side
    2,272.34x = 4,006,669.74
  5. Step 5: Solve for x
    x = 4,006,669.74/2,272.34
  6. Step 6: Final answer
    x = 1,763.24

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1.5x scale

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.