Home / 4,990.09-6,888.59-3,555.38

Finding the Fourth Proportional to 4,990.09, 6,888.59 and 3,555.38

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Solution

The fourth proportional to 4,990.09, 6,888.59 and 3,555.38 is: 4,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.09 : 6,888.59 = 3,555.38 : x
  2. Step 2: Convert to fraction form
    4,990.09/6,888.59 = 3,555.38/x
  3. Step 3: Cross multiply
    4,990.09x = 6,888.59 × 3,555.38
  4. Step 4: Simplify right side
    4,990.09x = 24,491,555.11
  5. Step 5: Solve for x
    x = 24,491,555.11/4,990.09
  6. Step 6: Final answer
    x = 4,908.04

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Half scale
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Double scale
Find fourth proportional to 4,991.09, 6,889.97 and 3,556.38
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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.