Home / 3,486.11-4,779.64-3,423.74

Finding the Fourth Proportional to 3,486.11, 4,779.64 and 3,423.74

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Solution

The fourth proportional to 3,486.11, 4,779.64 and 3,423.74 is: 4,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.11 : 4,779.64 = 3,423.74 : x
  2. Step 2: Convert to fraction form
    3,486.11/4,779.64 = 3,423.74/x
  3. Step 3: Cross multiply
    3,486.11x = 4,779.64 × 3,423.74
  4. Step 4: Simplify right side
    3,486.11x = 16,364,244.65
  5. Step 5: Solve for x
    x = 16,364,244.65/3,486.11
  6. Step 6: Final answer
    x = 4,694.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.