Home / 4,123.43-5,690.21-2,355

Finding the Fourth Proportional to 4,123.43, 5,690.21 and 2,355

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Solution

The fourth proportional to 4,123.43, 5,690.21 and 2,355 is: 3,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.43 : 5,690.21 = 2,355 : x
  2. Step 2: Convert to fraction form
    4,123.43/5,690.21 = 2,355/x
  3. Step 3: Cross multiply
    4,123.43x = 5,690.21 × 2,355
  4. Step 4: Simplify right side
    4,123.43x = 13,400,444.55
  5. Step 5: Solve for x
    x = 13,400,444.55/4,123.43
  6. Step 6: Final answer
    x = 3,249.83

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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.