Home / 3,406.38-4,701.15-2,289.65

Finding the Fourth Proportional to 3,406.38, 4,701.15 and 2,289.65

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Solution

The fourth proportional to 3,406.38, 4,701.15 and 2,289.65 is: 3,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.38 : 4,701.15 = 2,289.65 : x
  2. Step 2: Convert to fraction form
    3,406.38/4,701.15 = 2,289.65/x
  3. Step 3: Cross multiply
    3,406.38x = 4,701.15 × 2,289.65
  4. Step 4: Simplify right side
    3,406.38x = 10,763,988.10
  5. Step 5: Solve for x
    x = 10,763,988.10/3,406.38
  6. Step 6: Final answer
    x = 3,159.95

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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.