Home / 4,990.39-6,886.78-2,752.34

Finding the Fourth Proportional to 4,990.39, 6,886.78 and 2,752.34

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Solution

The fourth proportional to 4,990.39, 6,886.78 and 2,752.34 is: 3,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.39 : 6,886.78 = 2,752.34 : x
  2. Step 2: Convert to fraction form
    4,990.39/6,886.78 = 2,752.34/x
  3. Step 3: Cross multiply
    4,990.39x = 6,886.78 × 2,752.34
  4. Step 4: Simplify right side
    4,990.39x = 18,954,760.07
  5. Step 5: Solve for x
    x = 18,954,760.07/4,990.39
  6. Step 6: Final answer
    x = 3,798.25

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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.