Home / 6,721.90-9,274.89-4,069.55

Finding the Fourth Proportional to 6,721.90, 9,274.89 and 4,069.55

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Solution

The fourth proportional to 6,721.90, 9,274.89 and 4,069.55 is: 5,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.90 : 9,274.89 = 4,069.55 : x
  2. Step 2: Convert to fraction form
    6,721.90/9,274.89 = 4,069.55/x
  3. Step 3: Cross multiply
    6,721.90x = 9,274.89 × 4,069.55
  4. Step 4: Simplify right side
    6,721.90x = 37,744,651.79
  5. Step 5: Solve for x
    x = 37,744,651.79/6,721.90
  6. Step 6: Final answer
    x = 5,615.18

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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.