Home / 4,990.20-7,483.47-1,479.25

Finding the Fourth Proportional to 4,990.20, 7,483.47 and 1,479.25

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Solution

The fourth proportional to 4,990.20, 7,483.47 and 1,479.25 is: 2,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.20 : 7,483.47 = 1,479.25 : x
  2. Step 2: Convert to fraction form
    4,990.20/7,483.47 = 1,479.25/x
  3. Step 3: Cross multiply
    4,990.20x = 7,483.47 × 1,479.25
  4. Step 4: Simplify right side
    4,990.20x = 11,069,923.00
  5. Step 5: Solve for x
    x = 11,069,923.00/4,990.20
  6. Step 6: Final answer
    x = 2,218.33

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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.