Home / 3,128.49-4,691.66-1,483.92

Finding the Fourth Proportional to 3,128.49, 4,691.66 and 1,483.92

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Solution

The fourth proportional to 3,128.49, 4,691.66 and 1,483.92 is: 2,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.49 : 4,691.66 = 1,483.92 : x
  2. Step 2: Convert to fraction form
    3,128.49/4,691.66 = 1,483.92/x
  3. Step 3: Cross multiply
    3,128.49x = 4,691.66 × 1,483.92
  4. Step 4: Simplify right side
    3,128.49x = 6,962,040.69
  5. Step 5: Solve for x
    x = 6,962,040.69/3,128.49
  6. Step 6: Final answer
    x = 2,225.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.