Home / 2,271.76-3,135.14-1,277.35

Finding the Fourth Proportional to 2,271.76, 3,135.14 and 1,277.35

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Solution

The fourth proportional to 2,271.76, 3,135.14 and 1,277.35 is: 1,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.76 : 3,135.14 = 1,277.35 : x
  2. Step 2: Convert to fraction form
    2,271.76/3,135.14 = 1,277.35/x
  3. Step 3: Cross multiply
    2,271.76x = 3,135.14 × 1,277.35
  4. Step 4: Simplify right side
    2,271.76x = 4,004,671.08
  5. Step 5: Solve for x
    x = 4,004,671.08/2,271.76
  6. Step 6: Final answer
    x = 1,762.81

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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.