Home / 3,386.80-4,673.88-1,894.68

Finding the Fourth Proportional to 3,386.80, 4,673.88 and 1,894.68

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Solution

The fourth proportional to 3,386.80, 4,673.88 and 1,894.68 is: 2,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.80 : 4,673.88 = 1,894.68 : x
  2. Step 2: Convert to fraction form
    3,386.80/4,673.88 = 1,894.68/x
  3. Step 3: Cross multiply
    3,386.80x = 4,673.88 × 1,894.68
  4. Step 4: Simplify right side
    3,386.80x = 8,855,506.96
  5. Step 5: Solve for x
    x = 8,855,506.96/3,386.80
  6. Step 6: Final answer
    x = 2,614.71

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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.