Home / 3,418.84-5,132.58-2,909.08

Finding the Fourth Proportional to 3,418.84, 5,132.58 and 2,909.08

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Solution

The fourth proportional to 3,418.84, 5,132.58 and 2,909.08 is: 4,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.84 : 5,132.58 = 2,909.08 : x
  2. Step 2: Convert to fraction form
    3,418.84/5,132.58 = 2,909.08/x
  3. Step 3: Cross multiply
    3,418.84x = 5,132.58 × 2,909.08
  4. Step 4: Simplify right side
    3,418.84x = 14,931,085.83
  5. Step 5: Solve for x
    x = 14,931,085.83/3,418.84
  6. Step 6: Final answer
    x = 4,367.30

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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.