Home / 3,403.42-4,688.69-2,739.12

Finding the Fourth Proportional to 3,403.42, 4,688.69 and 2,739.12

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Solution

The fourth proportional to 3,403.42, 4,688.69 and 2,739.12 is: 3,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.42 : 4,688.69 = 2,739.12 : x
  2. Step 2: Convert to fraction form
    3,403.42/4,688.69 = 2,739.12/x
  3. Step 3: Cross multiply
    3,403.42x = 4,688.69 × 2,739.12
  4. Step 4: Simplify right side
    3,403.42x = 12,842,853.27
  5. Step 5: Solve for x
    x = 12,842,853.27/3,403.42
  6. Step 6: Final answer
    x = 3,773.52

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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.