Home / 3,118.77-4,655.33-2,749.72

Finding the Fourth Proportional to 3,118.77, 4,655.33 and 2,749.72

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Solution

The fourth proportional to 3,118.77, 4,655.33 and 2,749.72 is: 4,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.77 : 4,655.33 = 2,749.72 : x
  2. Step 2: Convert to fraction form
    3,118.77/4,655.33 = 2,749.72/x
  3. Step 3: Cross multiply
    3,118.77x = 4,655.33 × 2,749.72
  4. Step 4: Simplify right side
    3,118.77x = 12,800,854.01
  5. Step 5: Solve for x
    x = 12,800,854.01/3,118.77
  6. Step 6: Final answer
    x = 4,104.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.