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Finding the Fourth Proportional to 7,670.52, 11,506.92 and 2,739.12

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Solution

The fourth proportional to 7,670.52, 11,506.92 and 2,739.12 is: 4,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.52 : 11,506.92 = 2,739.12 : x
  2. Step 2: Convert to fraction form
    7,670.52/11,506.92 = 2,739.12/x
  3. Step 3: Cross multiply
    7,670.52x = 11,506.92 × 2,739.12
  4. Step 4: Simplify right side
    7,670.52x = 31,518,834.71
  5. Step 5: Solve for x
    x = 31,518,834.71/7,670.52
  6. Step 6: Final answer
    x = 4,109.09

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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.