Home / 2,272.34-3,135.56-1,277.56

Finding the Fourth Proportional to 2,272.34, 3,135.56 and 1,277.56

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Solution

The fourth proportional to 2,272.34, 3,135.56 and 1,277.56 is: 1,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.34 : 3,135.56 = 1,277.56 : x
  2. Step 2: Convert to fraction form
    2,272.34/3,135.56 = 1,277.56/x
  3. Step 3: Cross multiply
    2,272.34x = 3,135.56 × 1,277.56
  4. Step 4: Simplify right side
    2,272.34x = 4,005,851.81
  5. Step 5: Solve for x
    x = 4,005,851.81/2,272.34
  6. Step 6: Final answer
    x = 1,762.88

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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.