Home / 7,738.74-10,679.40-4,381.50

Finding the Fourth Proportional to 7,738.74, 10,679.40 and 4,381.50

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Solution

The fourth proportional to 7,738.74, 10,679.40 and 4,381.50 is: 6,046.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.74 : 10,679.40 = 4,381.50 : x
  2. Step 2: Convert to fraction form
    7,738.74/10,679.40 = 4,381.50/x
  3. Step 3: Cross multiply
    7,738.74x = 10,679.40 × 4,381.50
  4. Step 4: Simplify right side
    7,738.74x = 46,791,791.10
  5. Step 5: Solve for x
    x = 46,791,791.10/7,738.74
  6. Step 6: Final answer
    x = 6,046.44

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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.