Home / 4,990.84-6,887.40-2,752.80

Finding the Fourth Proportional to 4,990.84, 6,887.40 and 2,752.80

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Solution

The fourth proportional to 4,990.84, 6,887.40 and 2,752.80 is: 3,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.84 : 6,887.40 = 2,752.80 : x
  2. Step 2: Convert to fraction form
    4,990.84/6,887.40 = 2,752.80/x
  3. Step 3: Cross multiply
    4,990.84x = 6,887.40 × 2,752.80
  4. Step 4: Simplify right side
    4,990.84x = 18,959,634.72
  5. Step 5: Solve for x
    x = 18,959,634.72/4,990.84
  6. Step 6: Final answer
    x = 3,798.89

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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.