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Finding the Fourth Proportional to 7,661.34, 10,574.10 and 4,679.82

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Solution

The fourth proportional to 7,661.34, 10,574.10 and 4,679.82 is: 6,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.34 : 10,574.10 = 4,679.82 : x
  2. Step 2: Convert to fraction form
    7,661.34/10,574.10 = 4,679.82/x
  3. Step 3: Cross multiply
    7,661.34x = 10,574.10 × 4,679.82
  4. Step 4: Simplify right side
    7,661.34x = 49,484,884.66
  5. Step 5: Solve for x
    x = 49,484,884.66/7,661.34
  6. Step 6: Final answer
    x = 6,459.04

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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.