Home / 4,990.42-7,486.36-2,649.83

Finding the Fourth Proportional to 4,990.42, 7,486.36 and 2,649.83

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Solution

The fourth proportional to 4,990.42, 7,486.36 and 2,649.83 is: 3,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.42 : 7,486.36 = 2,649.83 : x
  2. Step 2: Convert to fraction form
    4,990.42/7,486.36 = 2,649.83/x
  3. Step 3: Cross multiply
    4,990.42x = 7,486.36 × 2,649.83
  4. Step 4: Simplify right side
    4,990.42x = 19,837,581.32
  5. Step 5: Solve for x
    x = 19,837,581.32/4,990.42
  6. Step 6: Final answer
    x = 3,975.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.