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Finding the Fourth Proportional to 4,839.62, 7,259.40 and 1,329.66

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Solution

The fourth proportional to 4,839.62, 7,259.40 and 1,329.66 is: 1,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.62 : 7,259.40 = 1,329.66 : x
  2. Step 2: Convert to fraction form
    4,839.62/7,259.40 = 1,329.66/x
  3. Step 3: Cross multiply
    4,839.62x = 7,259.40 × 1,329.66
  4. Step 4: Simplify right side
    4,839.62x = 9,652,533.80
  5. Step 5: Solve for x
    x = 9,652,533.80/4,839.62
  6. Step 6: Final answer
    x = 1,994.48

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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.