Home / 5,405.66-8,106.49-1,894.71

Finding the Fourth Proportional to 5,405.66, 8,106.49 and 1,894.71

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Solution

The fourth proportional to 5,405.66, 8,106.49 and 1,894.71 is: 2,841.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.66 : 8,106.49 = 1,894.71 : x
  2. Step 2: Convert to fraction form
    5,405.66/8,106.49 = 1,894.71/x
  3. Step 3: Cross multiply
    5,405.66x = 8,106.49 × 1,894.71
  4. Step 4: Simplify right side
    5,405.66x = 15,359,447.67
  5. Step 5: Solve for x
    x = 15,359,447.67/5,405.66
  6. Step 6: Final answer
    x = 2,841.36

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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.