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Finding the Fourth Proportional to 9,070.51, 13,600.79 and 2,828.85

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Solution

The fourth proportional to 9,070.51, 13,600.79 and 2,828.85 is: 4,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.51 : 13,600.79 = 2,828.85 : x
  2. Step 2: Convert to fraction form
    9,070.51/13,600.79 = 2,828.85/x
  3. Step 3: Cross multiply
    9,070.51x = 13,600.79 × 2,828.85
  4. Step 4: Simplify right side
    9,070.51x = 38,474,526.79
  5. Step 5: Solve for x
    x = 38,474,526.79/9,070.51
  6. Step 6: Final answer
    x = 4,241.72

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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.