Home / 3,486.72-4,814.46-2,699.40

Finding the Fourth Proportional to 3,486.72, 4,814.46 and 2,699.40

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Solution

The fourth proportional to 3,486.72, 4,814.46 and 2,699.40 is: 3,727.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.72 : 4,814.46 = 2,699.40 : x
  2. Step 2: Convert to fraction form
    3,486.72/4,814.46 = 2,699.40/x
  3. Step 3: Cross multiply
    3,486.72x = 4,814.46 × 2,699.40
  4. Step 4: Simplify right side
    3,486.72x = 12,996,153.32
  5. Step 5: Solve for x
    x = 12,996,153.32/3,486.72
  6. Step 6: Final answer
    x = 3,727.33

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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.