Home / 3,526.82-5,290.40-2,909.38

Finding the Fourth Proportional to 3,526.82, 5,290.40 and 2,909.38

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Solution

The fourth proportional to 3,526.82, 5,290.40 and 2,909.38 is: 4,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.82 : 5,290.40 = 2,909.38 : x
  2. Step 2: Convert to fraction form
    3,526.82/5,290.40 = 2,909.38/x
  3. Step 3: Cross multiply
    3,526.82x = 5,290.40 × 2,909.38
  4. Step 4: Simplify right side
    3,526.82x = 15,391,797.18
  5. Step 5: Solve for x
    x = 15,391,797.18/3,526.82
  6. Step 6: Final answer
    x = 4,364.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.