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Finding the Fourth Proportional to 4,990.91, 6,887.50 and 2,752.86

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Solution

The fourth proportional to 4,990.91, 6,887.50 and 2,752.86 is: 3,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.91 : 6,887.50 = 2,752.86 : x
  2. Step 2: Convert to fraction form
    4,990.91/6,887.50 = 2,752.86/x
  3. Step 3: Cross multiply
    4,990.91x = 6,887.50 × 2,752.86
  4. Step 4: Simplify right side
    4,990.91x = 18,960,340.47
  5. Step 5: Solve for x
    x = 18,960,340.47/4,990.91
  6. Step 6: Final answer
    x = 3,798.97

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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.