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Finding the Fourth Proportional to 3,329.98, 4,994.93 and 864.77

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Solution

The fourth proportional to 3,329.98, 4,994.93 and 864.77 is: 1,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.98 : 4,994.93 = 864.77 : x
  2. Step 2: Convert to fraction form
    3,329.98/4,994.93 = 864.77/x
  3. Step 3: Cross multiply
    3,329.98x = 4,994.93 × 864.77
  4. Step 4: Simplify right side
    3,329.98x = 4,319,442.80
  5. Step 5: Solve for x
    x = 4,319,442.80/3,329.98
  6. Step 6: Final answer
    x = 1,297.14

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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.