Home / 3,398.67-4,690.35-2,557.86

Finding the Fourth Proportional to 3,398.67, 4,690.35 and 2,557.86

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Solution

The fourth proportional to 3,398.67, 4,690.35 and 2,557.86 is: 3,529.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.67 : 4,690.35 = 2,557.86 : x
  2. Step 2: Convert to fraction form
    3,398.67/4,690.35 = 2,557.86/x
  3. Step 3: Cross multiply
    3,398.67x = 4,690.35 × 2,557.86
  4. Step 4: Simplify right side
    3,398.67x = 11,997,258.65
  5. Step 5: Solve for x
    x = 11,997,258.65/3,398.67
  6. Step 6: Final answer
    x = 3,529.99

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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.