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Finding the Fourth Proportional to 7,459.79, 10,294.68 and 4,102.79

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Solution

The fourth proportional to 7,459.79, 10,294.68 and 4,102.79 is: 5,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.79 : 10,294.68 = 4,102.79 : x
  2. Step 2: Convert to fraction form
    7,459.79/10,294.68 = 4,102.79/x
  3. Step 3: Cross multiply
    7,459.79x = 10,294.68 × 4,102.79
  4. Step 4: Simplify right side
    7,459.79x = 42,236,910.16
  5. Step 5: Solve for x
    x = 42,236,910.16/7,459.79
  6. Step 6: Final answer
    x = 5,661.94

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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.