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Finding the Fourth Proportional to 3,703.91, 5,108.90 and 2,379.23

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Solution

The fourth proportional to 3,703.91, 5,108.90 and 2,379.23 is: 3,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.91 : 5,108.90 = 2,379.23 : x
  2. Step 2: Convert to fraction form
    3,703.91/5,108.90 = 2,379.23/x
  3. Step 3: Cross multiply
    3,703.91x = 5,108.90 × 2,379.23
  4. Step 4: Simplify right side
    3,703.91x = 12,155,210.71
  5. Step 5: Solve for x
    x = 12,155,210.71/3,703.91
  6. Step 6: Final answer
    x = 3,281.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.