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Finding the Fourth Proportional to 2,952.92, 4,073.99 and 1,890.86

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Solution

The fourth proportional to 2,952.92, 4,073.99 and 1,890.86 is: 2,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.92 : 4,073.99 = 1,890.86 : x
  2. Step 2: Convert to fraction form
    2,952.92/4,073.99 = 1,890.86/x
  3. Step 3: Cross multiply
    2,952.92x = 4,073.99 × 1,890.86
  4. Step 4: Simplify right side
    2,952.92x = 7,703,314.91
  5. Step 5: Solve for x
    x = 7,703,314.91/2,952.92
  6. Step 6: Final answer
    x = 2,608.72

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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.