Home / 4,990.75-6,887.28-2,752.57

Finding the Fourth Proportional to 4,990.75, 6,887.28 and 2,752.57

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Solution

The fourth proportional to 4,990.75, 6,887.28 and 2,752.57 is: 3,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.75 : 6,887.28 = 2,752.57 : x
  2. Step 2: Convert to fraction form
    4,990.75/6,887.28 = 2,752.57/x
  3. Step 3: Cross multiply
    4,990.75x = 6,887.28 × 2,752.57
  4. Step 4: Simplify right side
    4,990.75x = 18,957,685.02
  5. Step 5: Solve for x
    x = 18,957,685.02/4,990.75
  6. Step 6: Final answer
    x = 3,798.57

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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.