Home / 3,830.13-5,289.57-3,417.84

Finding the Fourth Proportional to 3,830.13, 5,289.57 and 3,417.84

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Solution

The fourth proportional to 3,830.13, 5,289.57 and 3,417.84 is: 4,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.13 : 5,289.57 = 3,417.84 : x
  2. Step 2: Convert to fraction form
    3,830.13/5,289.57 = 3,417.84/x
  3. Step 3: Cross multiply
    3,830.13x = 5,289.57 × 3,417.84
  4. Step 4: Simplify right side
    3,830.13x = 18,078,903.93
  5. Step 5: Solve for x
    x = 18,078,903.93/3,830.13
  6. Step 6: Final answer
    x = 4,720.18

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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.