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Finding the Fourth Proportional to 7,774.68, 10,729 and 4,238.04

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Solution

The fourth proportional to 7,774.68, 10,729 and 4,238.04 is: 5,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.68 : 10,729 = 4,238.04 : x
  2. Step 2: Convert to fraction form
    7,774.68/10,729 = 4,238.04/x
  3. Step 3: Cross multiply
    7,774.68x = 10,729 × 4,238.04
  4. Step 4: Simplify right side
    7,774.68x = 45,469,931.16
  5. Step 5: Solve for x
    x = 45,469,931.16/7,774.68
  6. Step 6: Final answer
    x = 5,848.46

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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.