Home / 3,421.38-4,718.82-2,477.32

Finding the Fourth Proportional to 3,421.38, 4,718.82 and 2,477.32

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Solution

The fourth proportional to 3,421.38, 4,718.82 and 2,477.32 is: 3,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.38 : 4,718.82 = 2,477.32 : x
  2. Step 2: Convert to fraction form
    3,421.38/4,718.82 = 2,477.32/x
  3. Step 3: Cross multiply
    3,421.38x = 4,718.82 × 2,477.32
  4. Step 4: Simplify right side
    3,421.38x = 11,690,027.16
  5. Step 5: Solve for x
    x = 11,690,027.16/3,421.38
  6. Step 6: Final answer
    x = 3,416.76

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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.