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Finding the Fourth Proportional to 4,666.57, 6,999.94 and 1,379.66

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Solution

The fourth proportional to 4,666.57, 6,999.94 and 1,379.66 is: 2,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,666.57 : 6,999.94 = 1,379.66 : x
  2. Step 2: Convert to fraction form
    4,666.57/6,999.94 = 1,379.66/x
  3. Step 3: Cross multiply
    4,666.57x = 6,999.94 × 1,379.66
  4. Step 4: Simplify right side
    4,666.57x = 9,657,502.22
  5. Step 5: Solve for x
    x = 9,657,502.22/4,666.57
  6. Step 6: Final answer
    x = 2,069.51

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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.