Home / 3,078.54-4,247.64-1,751.76

Finding the Fourth Proportional to 3,078.54, 4,247.64 and 1,751.76

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Solution

The fourth proportional to 3,078.54, 4,247.64 and 1,751.76 is: 2,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.54 : 4,247.64 = 1,751.76 : x
  2. Step 2: Convert to fraction form
    3,078.54/4,247.64 = 1,751.76/x
  3. Step 3: Cross multiply
    3,078.54x = 4,247.64 × 1,751.76
  4. Step 4: Simplify right side
    3,078.54x = 7,440,845.85
  5. Step 5: Solve for x
    x = 7,440,845.85/3,078.54
  6. Step 6: Final answer
    x = 2,417.00

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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.