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Finding the Fourth Proportional to 2,920.86, 4,379.04 and 1,461.04

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Solution

The fourth proportional to 2,920.86, 4,379.04 and 1,461.04 is: 2,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.86 : 4,379.04 = 1,461.04 : x
  2. Step 2: Convert to fraction form
    2,920.86/4,379.04 = 1,461.04/x
  3. Step 3: Cross multiply
    2,920.86x = 4,379.04 × 1,461.04
  4. Step 4: Simplify right side
    2,920.86x = 6,397,952.60
  5. Step 5: Solve for x
    x = 6,397,952.60/2,920.86
  6. Step 6: Final answer
    x = 2,190.43

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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.