Home / 5,659.25-7,806.69-3,421.84

Finding the Fourth Proportional to 5,659.25, 7,806.69 and 3,421.84

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Solution

The fourth proportional to 5,659.25, 7,806.69 and 3,421.84 is: 4,720.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.25 : 7,806.69 = 3,421.84 : x
  2. Step 2: Convert to fraction form
    5,659.25/7,806.69 = 3,421.84/x
  3. Step 3: Cross multiply
    5,659.25x = 7,806.69 × 3,421.84
  4. Step 4: Simplify right side
    5,659.25x = 26,713,281.02
  5. Step 5: Solve for x
    x = 26,713,281.02/5,659.25
  6. Step 6: Final answer
    x = 4,720.29

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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.