Home / 4,113.24-6,170.77-1,920.78

Finding the Fourth Proportional to 4,113.24, 6,170.77 and 1,920.78

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Solution

The fourth proportional to 4,113.24, 6,170.77 and 1,920.78 is: 2,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.24 : 6,170.77 = 1,920.78 : x
  2. Step 2: Convert to fraction form
    4,113.24/6,170.77 = 1,920.78/x
  3. Step 3: Cross multiply
    4,113.24x = 6,170.77 × 1,920.78
  4. Step 4: Simplify right side
    4,113.24x = 11,852,655.94
  5. Step 5: Solve for x
    x = 11,852,655.94/4,113.24
  6. Step 6: Final answer
    x = 2,881.58

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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.