Home / 3,119.76-4,645.58-2,959.38

Finding the Fourth Proportional to 3,119.76, 4,645.58 and 2,959.38

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Solution

The fourth proportional to 3,119.76, 4,645.58 and 2,959.38 is: 4,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.76 : 4,645.58 = 2,959.38 : x
  2. Step 2: Convert to fraction form
    3,119.76/4,645.58 = 2,959.38/x
  3. Step 3: Cross multiply
    3,119.76x = 4,645.58 × 2,959.38
  4. Step 4: Simplify right side
    3,119.76x = 13,748,021.74
  5. Step 5: Solve for x
    x = 13,748,021.74/3,119.76
  6. Step 6: Final answer
    x = 4,406.76

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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.