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Finding the Fourth Proportional to 4,665.84, 6,998.84 and 1,379.28

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Solution

The fourth proportional to 4,665.84, 6,998.84 and 1,379.28 is: 2,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.84 : 6,998.84 = 1,379.28 : x
  2. Step 2: Convert to fraction form
    4,665.84/6,998.84 = 1,379.28/x
  3. Step 3: Cross multiply
    4,665.84x = 6,998.84 × 1,379.28
  4. Step 4: Simplify right side
    4,665.84x = 9,653,360.04
  5. Step 5: Solve for x
    x = 9,653,360.04/4,665.84
  6. Step 6: Final answer
    x = 2,068.94

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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.