Home / 2,980.26-4,470.59-900.11

Finding the Fourth Proportional to 2,980.26, 4,470.59 and 900.11

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Solution

The fourth proportional to 2,980.26, 4,470.59 and 900.11 is: 1,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.26 : 4,470.59 = 900.11 : x
  2. Step 2: Convert to fraction form
    2,980.26/4,470.59 = 900.11/x
  3. Step 3: Cross multiply
    2,980.26x = 4,470.59 × 900.11
  4. Step 4: Simplify right side
    2,980.26x = 4,024,022.76
  5. Step 5: Solve for x
    x = 4,024,022.76/2,980.26
  6. Step 6: Final answer
    x = 1,350.23

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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.