Home / 4,990.75-6,887.37-2,752.76

Finding the Fourth Proportional to 4,990.75, 6,887.37 and 2,752.76

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Solution

The fourth proportional to 4,990.75, 6,887.37 and 2,752.76 is: 3,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.75 : 6,887.37 = 2,752.76 : x
  2. Step 2: Convert to fraction form
    4,990.75/6,887.37 = 2,752.76/x
  3. Step 3: Cross multiply
    4,990.75x = 6,887.37 × 2,752.76
  4. Step 4: Simplify right side
    4,990.75x = 18,959,276.64
  5. Step 5: Solve for x
    x = 18,959,276.64/4,990.75
  6. Step 6: Final answer
    x = 3,798.88

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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.