Home / 3,165.36-4,367.76-2,117.76

Finding the Fourth Proportional to 3,165.36, 4,367.76 and 2,117.76

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Solution

The fourth proportional to 3,165.36, 4,367.76 and 2,117.76 is: 2,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.36 : 4,367.76 = 2,117.76 : x
  2. Step 2: Convert to fraction form
    3,165.36/4,367.76 = 2,117.76/x
  3. Step 3: Cross multiply
    3,165.36x = 4,367.76 × 2,117.76
  4. Step 4: Simplify right side
    3,165.36x = 9,249,867.42
  5. Step 5: Solve for x
    x = 9,249,867.42/3,165.36
  6. Step 6: Final answer
    x = 2,922.22

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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.